Josef Berka
Další nápady od uživatele Josef
Azurite from Namibia  →GEOLOGY - I LIKE ROCKS ALOT       suzanne      From Mineralia

Azurite from Namibia →GEOLOGY - I LIKE ROCKS ALOT suzanne From Mineralia

Large Mystic Topaz Gemstone -large  - cushion cut rectangular faceted gemstone -  Rainbow Topaz -  emerald cut quartz colorful big. $45.00, via Etsy.

Large Mystic Topaz Gemstone -large - cushion cut rectangular faceted gemstone - Rainbow Topaz - emerald cut quartz colorful big. $45.00, via Etsy.

What an excellent example of crystals at work! These natural minerals and mineralogy are occasionally reworked into gemstones (depending on size).

What an excellent example of crystals at work! These natural minerals and mineralogy are occasionally reworked into gemstones (depending on size).

Emerald- (Beyrl)-   composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2(SiO3)6...colored green by trace amounts of chromium and sometimes vanadium,  hardness of 7.5–8, Crystal system Hexagonal

Emerald- (Beyrl)- composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2(SiO3)6...colored green by trace amounts of chromium and sometimes vanadium, hardness of 7.5–8, Crystal system Hexagonal

Osmium twinning / Osmium is a hard, brittle, blue-gray or blue-black transition metal in the platinum family and is the densest naturally occurring element, with a density of 22.59 g/cm3 (slightly greater than that of iridium and twice that of lead).

Osmium twinning / Osmium is a hard, brittle, blue-gray or blue-black transition metal in the platinum family and is the densest naturally occurring element, with a density of 22.59 g/cm3 (slightly greater than that of iridium and twice that of lead).

I have no words to describe how perfect I think this piece of fluorite is! Oh my that's hot!

I have no words to describe how perfect I think this piece of fluorite is! Oh my that's hot!

Large Bismuth Metal Crystal

Large Bismuth Metal Crystal