Geology Tweets

Dipyramidal pinkred Ruby crystals on white Marble matrix. Jegdalek Ruby Mine, Sorobi Distrikt, Kabul Provinz, Afghanistan Photo by Laszlo Kupi The Wildfang Collection of Fine Minerals

Mandarin Garnet – Natural vs. Cut A rare and vibrant specimen. Which do you prefer: the raw crystal's natural form or its faceted brilliance? Video: Jochen Leën

Purple Fluorite Cluster –from Berbes, Spain Photo: Cybermineral

Lustrous, well-terminated vanadinite crystals on barite. A vibrant and eye-catching Video: The_collector_choice

Vibrant iridescent pyrite alongside quartz crystals. Video: naturalstone951

Vanadinite on Goethite – Taouz, Morocco Exceptional specimen featuring sharp, lustrous vanadinite crystals with vibrant color contrast atop goethite. Vid: @fineartminerals Ghulam Mustafa

Superb Anhui phantom fluorite from Fujian, China Vid: Diaoying11

Botryoidal chalcedony stalactite formation Photo: Rikza Gems

Absolutely Gorgeous Calcite on Amethyst Geode From Uruguay. Photo ©️ Nowar Minerals Inc.

Gorgeous needle quartz with calcite from Hubei China. Vid: Million_years_crystal

A stunning combination of Aquamarine with Quartz and Feldspar from the majestic Shigar Valley, Skardu District, Pakistan. This rare specimen showcases incredible luster, striking color contrast, and exceptional aesthetics. Vid:Durrani Fine Minerals

A rare green variety of petrified wood has been documented in a small, now-exhausted deposit of the Upper Triassic Chinle Formation near Winslow, Navajo County, geologyin.com/2025/07/green-…

Lepidodendron stumps at Glasgow's Fossil Grove - 325MY fossilized trees standing where they grew near the Paleozoic equator PIC: John Devlin., now managed by Fossil Grove Trust. (Credit: John Devlin)

Natural 22kg (48 lb) Himalayan quartz cluster with pristine terminated points, natural phantoms Video: Chineseminerals Fang Fang

Presenting this incredible Aquamarine on matrix from Shigar valley , Skardu , Pakistan . Video:Durrani Fine Minerals

Cobalto calcite from Morocco. Video: Abdou_mineral

Azurite crystals from Tsumeb Mine, Namibia Photo: Weinrich Minerals, Inc

Chocolate Opal (Shewa Opal) from Yita ridge, Mezezo Occurrence, North Shewa Zone, Amhara Region, Ethiopia Video: shewatrading_plc Henok Tesfaye 🍫

Aquamarine on Feldspar and Quartz from Nyth, Shigar Valley, Pakistan. Photo: Osama_durranii