Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Natrotantite Calciotantite & Simpsonite

Views:
Watches:
BCK956572

Natrotantite Calciotantite & Simpsonite

Rare Mineral

Description Tabs

Description
Locality: 
Alto do Giz Pegmatite, Equador, Borborema Province, Rio Grande do Norte, Brazil
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0 × 0 × 0 cm
Description

You are bidding on a fuly analyzed polished probe with rare calciotantite and natrotantite in simpsonite. Comes with complete analysis (see analysis tab above) and the resin bearer measures 2.5cm for scale. 

Mineral Data
What's on the rock

Natrotantite

Formula: 
Na2Ta4O11
Strunz: 
4.DJ.05
Hardness: 
7.0
Type Locality: 
Vasin-Myl'k Mt, Voron'i Tundry, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Calciotantite

Formula: 
CaTa4O11
Strunz: 
4.DJ.05
Hardness: 
6.5
Type Locality: 
Vasin-Myl'k Mt, Voron'i Tundry, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Simpsonite

Formula: 
Al4(Ta,Nb)3O13(OH,F)
Strunz: 
4.DC.10
Crystal System: 
Hexagonal
Hardness: 
7.0 - 7.5
Streak: 
white
Type Locality: 
Tabba Tabba pegmatite, Wallareenya Station, Port Hedland Shire, Western Australia, Australia
Analysis
Analysis Report - only: Natrotantite Calciotantite & Simpsonite

Seller Information

Payment options: offline, paypal_wpp, paypal_wps