45 cts Rare Graphic pegmatite rock intergrowths quartz /feldspar TBG-3971

684

存货单位: TBG-3971
尺寸（毫米）: 34.500 x 24.000 x 6.000mm
重量 (cts): 45.000
Treatment: No Treatment
类型: Cabochon
Shape: Freeform
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-3971
尺寸（毫米）: 34.500 x 24.000 x 6.000 mm
重量 (cts): 45.000
Treatment: No Treatment
类型: Cabochon
Shape: Freeform
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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