71.6cts Rare Graphic pegmatite rock intergrowths quartz /feldspar TBG-3959

380

存货单位: TBG-3959
尺寸（毫米）: 43.500 x 34.200 x 5.900mm
重量 (cts): 71.600
Treatment: No Treatment
类型: Cabochon
Shape: Oval
颜色

Graphic pegmatite rock intergrowths of quartz and feldspar

SOUTH DAKOTA , USA

Graphic granite, found predominantly in granitic pegmatite, is a leucocratic granitic rock consisting of an intimate intergrowth of alkali feldspar and quartz with a distinctive texture as ancient cuneiform writing when viewed in certain cross sections.

texture is a graphic intergrowth

two different minerals as a result of their simultaneous crystallization.

存货单位: TBG-3959
尺寸（毫米）: 43.500 x 34.200 x 5.900 mm
重量 (cts): 71.600
Treatment: No Treatment
类型: Cabochon
Shape: Oval
颜色

Graphic pegmatite rock intergrowths of quartz and feldspar

SOUTH DAKOTA , USA

texture is a graphic intergrowth

two different minerals as a result of their simultaneous crystallization.

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