Natural druzy Amethyst with quartz from India. Photo. Laszlo Kupi. Joanna Gajowniczek-Praszkier collection. #minerals #crystals #amethyst #quartz

Special quartz inclusion (actinolite) specimen from the 19th century. Found at the Gotthardpass, Tessin, Switzerland. Video: mineralien-surselva.com Patrick Reith

Natural color etched kunzite crystal Photo: Usman.khan_minerals

Rare Imperial Topaz specimen from Brazil. Photo: mineral_lover #minerals

The color suggests rose quartz; the distinct crystals suggest amethyst. From Reddit, Quora and Rock & Gem Magazine the following:

Stunning fluorite from Hunan Province! 🌈 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 邹维玲

Check out these natural terminated quartz crystals! 💎 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

Malachite, shattuckite and calcite From Kaokoveld Plateau, Namibia what do you think? Video: spirifer_minerals

Naturally terminated tourmaline attached to the bottom of a snowy quartz crystal. Photo: Star_minerals_collection

Naturally terminated tourmaline attached to the bottom of a snowy quartz crystal. Photo: Star_minerals_collection

Natural Vanadinite crystals on Barite from Atlas Mountains, Mibladen, Morocco Video: GandharaGems Noor Ullah

Rare Alien Eye Mica Specimen From Pakistan. Video: hamza_minerals_collection #crystals

Paraiba Blue Color Tourmaline Photo: Shakir Ullah #gems

Velvet Azurite balls on Malachite, Morenci Mine, Greenlee County, Arizona Photo: TeriyakiMinerals

Eagle carvings in Quartz by l_aquart and his amazing team in Lima, Peru Credit: l_aquart/IG

Paraiba Blue Color Tourmaline Photo: Shakir Ullah #gems

Blue fluorite + hematite balls From Jiangxi Paitang Video: zouweiling 邹维玲 #minerals #crystals

Amethyst flower from India. Credit: Min_minerals

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 species—only SiO₂ www.geologyin.com/2025/11/alli...

Native copper showing a cluster of intergrown herringbone crystals and small spinel twins. From San Agustín Mine, Corocoro, Pacajes Province, La Paz Department, Bolivia. Photo: CarlesMillan Cc #minerals

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

A very interesting chalcedony with malachite ring inclusions From Congo, Africa Credit: zouweiling 邹维玲

Opals come in various types, each with its own unique characteristics. Opal is a hydrated amorphous form of silica SiO₂·nH₂O; 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...

Lustrous Blue Aquamarine Specimen From Nagar Valley GB Pakistan. Video: hamza_minerals_collection #minerals

Chalcopyrite with Calcite from Sweetwater mine, Missouri ✨ What do you Think?? Video: Pacific Minerals

High quality Watermelon, Blue, Pink & Green Tourmalines in Quartz ✨ from Brazil Photo: J&S Minerals #minerals

Etched Spessertine Garnet Cluster from Afghanistan Photo: SHAHEEN GEMS AND MINERALS CO #minerals #crystals

Peridot naturally double terminated crystal From mansehra Pakistan Photo: Star_minerals_collection

MOST unusual, sharply color-zoned slice of amethyst from a bizarre stalactitic growth. This was found in India Photo: Rob Lavinsky Cc #minerals #crystals

I can’t 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

Polished banded Turkish agate slab — from North Ankara Photo: Ertuğ Arikan #agate #gems

Gobi Agate is a distinctive rare variety of botryoidal chalcedony, characterized by its globular and often colorful formations. www.geologyin.com/2024/06/gobi...

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

Exceptional Morganite (Var. beryl) Crystal from Kunar, Afghanistan Video: star_minerals_collection #gems #crystals

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

Exceptional Morganite (Var. beryl) Crystal from Kunar, Afghanistan Video: star_minerals_collection #gems #crystals

Shungite is a rare, carbon-rich mineraloid rock found primarily in the Karelia region of northwestern Russia, One of shungite’s most distinctive features is its content of fullerenes—hollow, spherical molecules made entirely of carbon (notably C₆₀ and C₇₀). www.geologyin.com/2025/10/what...

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

Natural terminated etched kunzite crystal from Pakistan Photo: usman.khan_minerals #crystals

Amazing thunder-egg agate from North Ankara, Turkey Photo: Turgay İskender #agate

Brazilian opal on matrix Photo: Daniel Mekis Cc #opal #gems

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 categories—gold, gemstones, fossils, and meteorites— www.geologyin.com/2025/10/how-...

Malachite botryoidal, from Congo looks like an emerald brain! what do you think? Photo: Jimee, Jackie, Tom & Asha Cc #minerals

Top level Tourmaline crystals, which one do you like more? Photo: 22sGems #minerals #gems

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

Gobi Agate is a distinctive rare variety of botryoidal chalcedony, characterized by its globular and often colorful formations. www.geologyin.com/2024/06/gobi...

Polished banded Turkish agate slab — from North Ankara Photo: Ertuğ Arikan #agate #gems

I can’t 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

MOST unusual, sharply color-zoned slice of amethyst from a bizarre stalactitic growth. This was found in India Photo: Rob Lavinsky Cc #minerals #crystals

Natural green Dioptase & Calcite, This stunning combo from the Tsumeb Mine in Namibia Photo: Didier Descouens Cc #minerals #crystals