rocks and gems

Collection by Mike Rathke • Last updated 4 hours ago

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Ethiopian Opal Chunk

Find the perfect handmade gift, vintage & on-trend clothes, unique jewelry, and more… lots more.

Stunning Pyrite

The physical and metaphysical properties of pyrite, a metal that resembles gold.

Proustite ~ Rare Collector's Mineral From Chile

An interactive reference guide to rocks, minerals, and gemstones.

What Is a Septarian Concretion?

The septaria are the calcite filled cracks at the centre of the rock, indicating where the centres of the concretions have shrunk, possibly during dehydration during its long transformative journey.

VIVIANITE. Huanuni Mine, Huanuni, Dalence Province, Oruro | Lot #87135 | Heritage Auctions

VIVIANITE Huanuni Mine, Huanuni, Dalence Province, Oruro Department, Bolivia When Vivianites are first - Available at 2013 June 2 Nature & Science...

This is an American Contra Luz Opal.

Breathtaking.

Opals in Oregon

Recent mining at Opal Butte in northeastern Oregon has produced a wide variety of large flawless opals Where to Find Opals in Oregon

Why is Red Beryl So Rare?

It is estimated that one crystal of red beryl is found for every 150,000 gem-quality diamonds.

25 minerais deslumbrantes achados pela Terra que irão encantar seus olhos - Follow the Colours

Existem quase 5.000 tipos de minerais conhecidos pelo homem. Esses, especialmente, fazem parte de um grupo misterioso, com cores e formas fantásticas.

Rare and precious - Anton Watzl Minerals

Watzlminerals Webpage.

Titanite

3.2 x 2.3 x 2.0 cm. A sharp and superb, olive-green titanite spear point vertically and aesthetically set in matrix from Pakistan. This beauty has classic titanite form, translucency and color. Highly representative of the species and locality. Copyright © Rob Lavinsky & irocks.com

25 minerais deslumbrantes achados pela Terra que irão encantar seus olhos - Follow the Colours

Existem quase 5.000 tipos de minerais conhecidos pelo homem. Esses, especialmente, fazem parte de um grupo misterioso, com cores e formas fantásticas.

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Large Ethiopian Opal Specimen

Find the perfect handmade gift, vintage & on-trend clothes, unique jewelry, and more… lots more.

Australian Raw Natural Staurolite aka Fairy Stones (3 x Stones) Mineral Crystals ~ Mt Isa

Staurolite crystals aka Fairy Stones from Mount Isa, Queensland, Australia. These stones were once easy to obtain the the Mt Isa region but nowadays there are not too many around. You will receive 3 x Australian Staurolite's randomly chosen. Sizes vary from approx .9cm to 1.5cm. Will be chosen fairly with you the customer in mind. THE MINERAL STAUROLITEStaurolite is an iron aluminium silicate hydroxide mineral found in metamorphosed pelitic rocks. Staurolite typically forms cross shaped…