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Salammoniac & Lecontite

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CMM649792

Salammoniac & Lecontite

Description Tabs

Description
Locality: 
Unspecified Pit, La Negra, Antofagasta Province, Antofagasta Region, Chile
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3.2 × 2.2 cm
Weight: 
15.00gr
Description

Bright electric blue salammoniac and lecontite with some traces of cupper.

No tracted. Samples of lecontite from this place seems to exchange humidity with the atmosphere, that gives to this specimens a look like they were humidity or covered with a layer of oil, but it´s not oil.

Lecontite could turns to opaque white under certain conditions. The analysis made to some samples that showed this change in results appears two new minerals: Mascagnite and Thenardite. By our proves hard temperature changes without a correct protection of the atmosphere of the sample could result in this change. We recomend to keep the samples wraped in plastic or in an stanque plastic box, or something similar. No sensibility to acetone, we had bathed a sample and it is ok.

You can read more about material at e-rocks blog post: Chilean Blues - Update on the find at Coronel Manuel Rodriguez Mine

Mineral Data
What's on the rock

Salammoniac

Formula: 
NH4Cl
Strunz: 
3.AA.25
Crystal System: 
Isometric
Hardness: 
1.0 - 2.0

Lecontite

Formula: 
(NH4,K)NaSO4·2H2O
Strunz: 
7.CD.15
Crystal System: 
Orthorhombic
Hardness: 
2.0 - 2.5
Type Locality: 
Las Piedras Cave, Comayagua Department, Honduras
ecomMinerals

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You have until 14 days to dessit of your purchase. Broken or damaged items will be replaced or refunded The refund does not include shipping costs Outside European Union buyers assumes customs duties Usually for combined purchases, until 2kg: Spain: 8€ Europe: 23€ Rest of World: 26€ We reserve the right to modify these prices and conditions, to fit the needs of each shipment.

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