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Aluminium & Corundum

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UMM864592

Aluminium & Corundum

Description Tabs

Description
Locality: 
Hettstedt Slag Locality, Mansfeld Basin, Saxony - Anhalt, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6.5 × 3 cm
Weight: 
144.00gr
Description

This artifact is a mixture of corundum crystals and aluminum crystals. This product was manufactured in the years after 1830 and before 1860.
Apparently, an attempt was made to produce pure aluminum from aluminum clay. However, this experiment produced not only pure aluminum but also corundum crystals. These corundum crystals are firmly bonded to the aluminum. This piece is an extremely rare artifact.

Boxed with Label
Mineral Data
What's on the rock

Aluminium

Formula: 
Al
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.0 - 3.5
Type Locality: 
Billeekh Intrusion, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
9.0
Streak: 
White

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Seller's terms and conditions

Es gelten die allgemeinen Geschäftsbedingungen nach deutschem BGB.