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Holfertite

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RSL612734

Holfertite

Type Locality

Description Tabs

Description
Locality: 
Holfertite Pit, Starvation Canyon, Thomas Range, Juab County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 3.5 × 2.8 cm
Description

Sharp and elongated prismatic crystal of holfertite, with the characteristic yellow color and accompanied by quartz and topaz in the rhyolite matrix. It is a rare hydroxyl-hydrated uranium titanate. From the Type Locality.

Mineral Data
What's on the rock

Holfertite

Formula: 
CaxU6+2-xTi(O8-xOH4x)·3H2O
Strunz: 
4.GB.70
Hardness: 
4.0 - 0.0
Type Locality: 
Holfertite pit, Starvation Canyon (Searles Canyon), Thomas Range, Juab Co., Utah, USA