Geology
@geologytime.bsky.social
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Unlocking science of
#Minerals
,
#Crystals
,
#fossils
, gems, and geology.
reposted by
Geology
Natural druzy Amethyst with quartz from India. Photo. Laszlo Kupi. Joanna Gajowniczek-Praszkier collection.
#minerals
#crystals
#amethyst
#quartz
12 months ago
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Special quartz inclusion (actinolite) specimen from the 19th century. Found at the Gotthardpass, Tessin, Switzerland. Video: mineralien-surselva.com Patrick Reith
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3 days ago
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Natural color etched kunzite crystal Photo: Usman.khan_minerals
4 days ago
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Rare Imperial Topaz specimen from Brazil. Photo: mineral_lover
#minerals
5 days ago
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reposted by
Geology
JoJo
5 days ago
The color suggests rose quartz; the distinct crystals suggest amethyst. From Reddit, Quora and Rock & Gem Magazine the following:
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Stunning fluorite from Hunan Province! š Look at that gorgeous green core melting into deep blue-purple edges. The cubic crystal structure and perfect zoning make this specimen absolutely mesmerizing! Vid: zouweiling é¹ē»“ē²
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5 days ago
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Check out these natural terminated quartz crystals! š Can you tell if they're rose quartz or amethyst? Are we looking at purple/violet vibes or pink tones? Photo: Usman.khan_minerals
#minerals
#crystals
5 days ago
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Malachite, shattuckite and calcite From Kaokoveld Plateau, Namibia what do you think? Video: spirifer_minerals
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5 days ago
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reposted by
Geology
Naturally terminated tourmaline attached to the bottom of a snowy quartz crystal. Photo: Star_minerals_collection
8 days ago
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Naturally terminated tourmaline attached to the bottom of a snowy quartz crystal. Photo: Star_minerals_collection
8 days ago
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Natural Vanadinite crystals on Barite from Atlas Mountains, Mibladen, Morocco Video: GandharaGems Noor Ullah
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11 days ago
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Rare Alien Eye Mica Specimen From Pakistan. Video: hamza_minerals_collection
#crystals
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12 days ago
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reposted by
Geology
Paraiba Blue Color Tourmaline Photo: Shakir Ullah
#gems
20 days ago
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Velvet Azurite balls on Malachite, Morenci Mine, Greenlee County, Arizona Photo: TeriyakiMinerals
14 days ago
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Eagle carvings in Quartz by l_aquart and his amazing team in Lima, Peru Credit: l_aquart/IG
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18 days ago
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Paraiba Blue Color Tourmaline Photo: Shakir Ullah
#gems
20 days ago
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Blue fluorite + hematite balls From Jiangxi Paitang Video: zouweiling é¹ē»“ē²
#minerals
#crystals
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21 days ago
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Amethyst flower from India. Credit: Min_minerals
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25 days ago
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Alligator quartz is a distinctive textural variety of quartz defined by its reptile-skin surface composed of tightly packed, blocky, stepped micro-crystals. It is not a separate mineral speciesāonly SiOā
www.geologyin.com/2025/11/alli...
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Alligator Quartz ā Geology In
Alligator quartz is a distinctive textural variety of quartz defined by its reptile-skin surface composed of tightly packed, blocky, steppe...
https://www.geologyin.com/2025/11/alligator-quartz.html
25 days ago
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reposted by
Geology
Native copper showing a cluster of intergrown herringbone crystals and small spinel twins. From San AgustĆn Mine, Corocoro, Pacajes Province, La Paz Department, Bolivia. Photo: CarlesMillan Cc
#minerals
3 months ago
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reposted by
Geology
Natural Amethyst cluster from Las Vigas, Veracruz, Mexico. On display at the Natural History Museum of Los Angeles County, Los Angeles, California. Photo: Eric Polk Cc
#crystals
#amethyst
3 months ago
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A very interesting chalcedony with malachite ring inclusions From Congo, Africa Credit: zouweiling é¹ē»“ē²
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29 days ago
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Opals come in various types, each with its own unique characteristics. Opal is a hydrated amorphous form of silica SiOāĀ·nHāO; its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Due to its amorphous property,
www.geologyin.com/2016/06/type...
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Types of Opal With Photos ā Geology In
Opals come in various types, each with its own unique characteristics. Opal is a hydrated amorphous form of silica SiOāĀ·nHāO ; its water c...
https://www.geologyin.com/2016/06/types-of-opal-with-photos.html
about 1 month ago
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Lustrous Blue Aquamarine Specimen From Nagar Valley GB Pakistan. Video: hamza_minerals_collection
#minerals
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about 1 month ago
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Chalcopyrite with Calcite from Sweetwater mine, Missouri ⨠What do you Think?? Video: Pacific Minerals
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about 1 month ago
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High quality Watermelon, Blue, Pink & Green Tourmalines in Quartz ⨠from Brazil Photo: J&S Minerals
#minerals
about 1 month ago
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Etched Spessertine Garnet Cluster from Afghanistan Photo: SHAHEEN GEMS AND MINERALS CO
#minerals
#crystals
about 2 months ago
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Peridot naturally double terminated crystal From mansehra Pakistan Photo: Star_minerals_collection
about 2 months ago
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reposted by
Geology
MOST unusual, sharply color-zoned slice of amethyst from a bizarre stalactitic growth. This was found in India Photo: Rob Lavinsky Cc
#minerals
#crystals
3 months ago
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reposted by
Geology
I canāt get enough of the color and clarity of this gemmy blue polished Medina Aquamarine from Brazil! What's your go-to gemstone or favorite crystal? Video: Eddywrapsgems Arek Varjabedian
#minerals
#crystals
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2 months ago
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reposted by
Geology
Polished banded Turkish agate slab ā from North Ankara Photo: ErtuÄ Arikan
#agate
#gems
2 months ago
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reposted by
Geology
Gobi Agate is a distinctive rare variety of botryoidal chalcedony, characterized by its globular and often colorful formations.
www.geologyin.com/2024/06/gobi...
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Gobi Agate: Unique Gemstone of the Desert ā Geology In
Gobi Agate is a distinctive rare variety of botryoidal chalcedony, characterized by its globular and often colorful formations. What is Gob...
https://www.geologyin.com/2024/06/gobi-desert-agate.html
2 months ago
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reposted by
Geology
Iris Agate: Rainbow agate Iris Agate is a unique type of sliced Agate that exhibits a rainbow effect when held up to the sun or a light from Jakarta, Indonesia Photo:
Mondszcrystal.id
#gems
2 months ago
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reposted by
Geology
Exceptional Morganite (Var. beryl) Crystal from Kunar, Afghanistan Video: star_minerals_collection
#gems
#crystals
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2 months ago
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reposted by
Geology
Exceptional Tanzanite specimen from Merelani Hills, Tanzania. This rare, natural doublet cluster showcases vibrant trichroic colors (violet-purple, blue, rich magenta-red) Photo: Rob Lavinsky, CC-BY-SA-3.0
#gems
#crystals
2 months ago
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Exceptional Morganite (Var. beryl) Crystal from Kunar, Afghanistan Video: star_minerals_collection
#gems
#crystals
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2 months ago
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Shungite is a rare, carbon-rich mineraloid rock found primarily in the Karelia region of northwestern Russia, One of shungiteās most distinctive features is its content of fullerenesāhollow, spherical molecules made entirely of carbon (notably Cāā and Cāā).
www.geologyin.com/2025/10/what...
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What is Shungite ā Geology In
Shungite is a rare, carbon-rich mineraloid rock found primarily in the Karelia region of northwestern Russia, near the village of Shunga, ...
https://www.geologyin.com/2025/10/what-is-shungite.html
2 months ago
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Exceptional Tanzanite specimen from Merelani Hills, Tanzania. This rare, natural doublet cluster showcases vibrant trichroic colors (violet-purple, blue, rich magenta-red) Photo: Rob Lavinsky, CC-BY-SA-3.0
#gems
#crystals
2 months ago
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Natural terminated etched kunzite crystal from Pakistan Photo: usman.khan_minerals
#crystals
2 months ago
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Amazing thunder-egg agate from North Ankara, Turkey Photo: Turgay İskender
#agate
2 months ago
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Brazilian opal on matrix Photo: Daniel Mekis Cc
#opal
#gems
2 months ago
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How to Tell If a Rock Is Worth Money When you find an unusual or eye-catching rock and wonder if it might be valuable, the first step is careful observation and testing. Many valuable finds fall into four main categoriesāgold, gemstones, fossils, and meteoritesā
www.geologyin.com/2025/10/how-...
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How to Tell If a Rock Is Worth Money ā Geology In
When you find an unusual or eye-catching rock and wonder if it might be valuable, the first step is careful observation and testing. Many va...
https://www.geologyin.com/2025/10/how-to-tell-if-rock-is-worth-money.html
2 months ago
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Malachite botryoidal, from Congo looks like an emerald brain! what do you think? Photo: Jimee, Jackie, Tom & Asha Cc
#minerals
2 months ago
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Top level Tourmaline crystals, which one do you like more? Photo: 22sGems
#minerals
#gems
2 months ago
1
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Iris Agate: Rainbow agate Iris Agate is a unique type of sliced Agate that exhibits a rainbow effect when held up to the sun or a light from Jakarta, Indonesia Photo:
Mondszcrystal.id
#gems
2 months ago
0
57
14
Gobi Agate is a distinctive rare variety of botryoidal chalcedony, characterized by its globular and often colorful formations.
www.geologyin.com/2024/06/gobi...
loading . . .
Gobi Agate: Unique Gemstone of the Desert ā Geology In
Gobi Agate is a distinctive rare variety of botryoidal chalcedony, characterized by its globular and often colorful formations. What is Gob...
https://www.geologyin.com/2024/06/gobi-desert-agate.html
2 months ago
0
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Polished banded Turkish agate slab ā from North Ankara Photo: ErtuÄ Arikan
#agate
#gems
2 months ago
1
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12
I canāt get enough of the color and clarity of this gemmy blue polished Medina Aquamarine from Brazil! What's your go-to gemstone or favorite crystal? Video: Eddywrapsgems Arek Varjabedian
#minerals
#crystals
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2 months ago
3
108
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MOST unusual, sharply color-zoned slice of amethyst from a bizarre stalactitic growth. This was found in India Photo: Rob Lavinsky Cc
#minerals
#crystals
3 months ago
1
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Natural green Dioptase & Calcite, This stunning combo from the Tsumeb Mine in Namibia Photo: Didier Descouens Cc
#minerals
#crystals
3 months ago
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