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Hydromagnesite With Brucite

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KRM1137051

Description Tabs

Description
Locality: 
Killa Saifullah District, Baluchistan, Pakistan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 3 × 1.4 cm
Description

An outstanding specimen featuring hydromagnesite crystals up to 2.25 cm in length, attractively resting on a bed of green brucite. Crystals from this locality are usually under 1 cm, making this a truly exceptional example. The hydromagnesite is well-doubly terminated, highly lustrous, and unusually large, beautifully contrasting with the brucite matrix. From the seller’s personal collection, and representing one of the finest styles of this rare association from Killa Saifullah.

 

Mineral Data
What's on the rock

Hydromagnesite

Formula: 
Mg5(CO3)4(OH)2·4H2O
Strunz: 
5.DA.05
Crystal System: 
Monoclinic
Hardness: 
3.5
Type Locality: 
Castle Point, Hoboken, Hudson Co., New Jersey, USA

Brucite

Formula: 
Mg(OH)2
Strunz: 
4.FE.05
Crystal System: 
Hexagonal
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Castle Point, Hoboken, Hudson Co., New Jersey, USA

Seller Information

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