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Microcline, KAlSi3O8, crystals, Skardu, Pakistan

Microcline, KAlSi3O8, crystals, Skardu, Pakistan

Orthoclase --   Shigar Valley, Skardu District, Baltistan, Pakistan     Two large, very sharp, lustrous white orthoclase crystals on a massive orthoclase base covered in thick tablets of mica, small black schorl crystals and a few very light pink apatite crystals. The orthoclase crystals are Baveno law twins.

Orthoclase -- Shigar Valley, Skardu District, Baltistan, Pakistan Two large, very sharp, lustrous white orthoclase crystals on a massive orthoclase base covered in thick tablets of mica, small black schorl crystals and a few very light pink apatite crystals. The orthoclase crystals are Baveno law twins.

Amazonite, K(AlSi3O8), (=Microcline) and Smoky Quartz, Colorado, USA. Photo Joaquim Callén

Amazonite, K(AlSi3O8), (=Microcline) and Smoky Quartz, Colorado, USA. Photo Joaquim Callén

Reedmergnerite ~  Ganadao (Ghandahab), Mohmand Agency, Federally Administered Tribal Areas (FATA), Pakistan

Reedmergnerite ~ Ganadao (Ghandahab), Mohmand Agency, Federally Administered Tribal Areas (FATA), Pakistan

Sanidine,  (K,Na)(Si,Al)4O8, (var. Azulicite) Mina La Pili, Chihuahua, Mexique. (3.5x2.2 cm)

Sanidine, (K,Na)(Si,Al)4O8, (var. Azulicite) Mina La Pili, Chihuahua, Mexique. (3.5x2.2 cm)

Riebeckite, [ ]Na2(Fe++3Fe+++2)Si8O22(OH)2 , amphibole group, Zagi Mountain, Khyber Pakhtunkhwa, Pakistan. A superb group of lustrous black crystals of this very rare species, to 3.3 cm, perched on a granite matrix. A small reddish-brown Bastanite xl is nestled amidst the group. Although Riebeckite is a common black rock-forming mineral at the deposit , it is very uncommon as crystallized specimens

Riebeckite, [ ]Na2(Fe++3Fe+++2)Si8O22(OH)2 , amphibole group, Zagi Mountain, Khyber Pakhtunkhwa, Pakistan. A superb group of lustrous black crystals of this very rare species, to 3.3 cm, perched on a granite matrix. A small reddish-brown Bastanite xl is nestled amidst the group. Although Riebeckite is a common black rock-forming mineral at the deposit , it is very uncommon as crystallized specimens

Stilbite

Stilbite

Topaz on Albite from Shigar Valley, Skardu Dist., Pakistan

Topaz on Albite from Shigar Valley, Skardu Dist., Pakistan

Orthose (orthoclase), KAlSi3O8, rose (mâcle), Saint Babel, Puy de Dôme, France

Orthose (orthoclase), KAlSi3O8, rose (mâcle), Saint Babel, Puy de Dôme, France

Orthoclase / Pakistan    I love crystals that grow in a geometricly unique way!

Orthoclase / Pakistan I love crystals that grow in a geometricly unique way!

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