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Neptunite & Natrolite

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QRI975899

Neptunite & Natrolite

Classic Locality

Description Tabs

Description
Locality: 
Benitoite Mine, San Benito County, California, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.3 × 1.9 cm
Largest Crystal: 
1.60cm
Weight: 
21.00gr
Description

Outstanding thumbnail specimen featuring a prominent neptunite fan, surrounded by a few others.
Main neptunite crystals are in mint conditions, sharp, and mirror lustrous. Color contrast with the surrounding etched natrolite matrix is as good as it gets. 
Some peripheral crystals show some contacts or are missing. 

A superb specimen, it comes with its original Perky box.

Mineral Data
What's on the rock

Neptunite

Formula: 
Na2KLi(Fe2+,Mn2+)2Ti2(Si8O24)
Strunz: 
9.EH.05
Hardness: 
5.0 - 6.0
Colour: 
Black
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Natrolite

Formula: 
Na2Al2Si3O10·2H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany

Seller Information

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Seller's terms and conditions

Shipping within 15 days after payment received, unless specified/agreed otherwise.

Combined shipping is possible, please inquire for details.