MOST unusual, sharply color-zoned slice of amethyst from a bizarre stalactitic growth. This was found in India
Photo: Rob Lavinsky Cc
#minerals #crystals
@geologytime.bsky.social
Unlocking science of #Minerals, #Crystals, #fossils, gems, and 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
I canβt 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 β from North Ankara 
Photo: ErtuΔ 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 shungiteβs most distinctive features is its content of fullerenesβhollow, spherical molecules made entirely of carbon (notably Cββ and Cββ). 
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 Δ°skender
#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 categoriesβgold, gemstones, fossils, and meteoritesβ
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 β from North Ankara 
Photo: ErtuΔ Arikan
#agate #gems
I canβt 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
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
Native copper showing a cluster of intergrown herringbone crystals and small spinel twins. From San AgustΓn Mine, Corocoro, Pacajes Province, La Paz Department, Bolivia.
Photo: CarlesMillan Cc
#minerals
Welo opals are prized for their vivid play-of-color, displaying flashes of red, green, orange, yellow, and blue. Their combination of brilliance, availability, and relative affordability compared to Australian opals
www.geologyin.com/2025/10/what...
Lustrous Pyrite on Quartz
Where 'fool's gold' actually means 'I'm rich in natural beauty
Photo by: Naturalstone951
#crystals #gold
Grape agate just sitting there looking deliciously purple and edible... anyone else having to resist the urge to take a bite?
Photo: zamstone_id
Moch Zamzam
#gems #crystals
Feast your eyes on this topaz crystal from Shigar Valley, Pakistan! Itβs like a dazzling gem with tons of sparkly faces, Natureβs totally flexing here. 
Whatβs the sparkliest crystal youβve ever seen?
Video: mfm.08/IG
Hafeez Ullah Khan
#CRYSTALS #GEMS
Natural green Apophyllite crystals on Stilbite π«
From Jalgoan, Maharashtra, India
Video: lostgemz
Creighton Beery
#crystals
Extremely Gemmy Quartz from Himalayas π
Next level clarity..Mined at a very high altitude.
Kulu Valley, Himachal Pradesh π
What do you think?
Video: Pacific Minerals
#crystals #gems