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Spurrite & Tilleyite

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GMN650022

Spurrite & Tilleyite

Description Tabs

Description
Locality: 
Vaţa de Sus, Hunedoara County, Romania
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.5 × 1 cm
Description

Rare calcium silicates from Romania. The specimen is a massive greyish spurrite, with tilleyite (max 25-30%).

This two minerals cannot be distinguish from each other

 

Mineral Data
What's on the rock

Spurrite

Formula: 
Ca5(SiO4)2(CO3)
Strunz: 
9.AH.15
Hardness: 
5.0
Streak: 
white
Type Locality: 
Terneras Mine, Velardeña, Velardeña District, Mun. de Cuencamé, Durango, Mexico

Tilleyite

Formula: 
Ca5(Si2O7)(CO3)2
Strunz: 
9.BE.82
Hardness: 
0.0
Type Locality: 
Crestmore quarries, Crestmore, Riverside Co., California, USA

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