Specimen with several Ettringite crystals in parallel growth up to 1,0 cm tall on contrasting calcite matrix. They are a translucent bright yellow colour. A beautiful and finely detailed thumbnail from the famous South African locality.
Formula :
Ca6Al2[(OH)1/(SO4)3] * 26 H2O
System: hexagonal Hardness:2-2½ Rarity:not common
Strunz id:VI/D.13-10 -
SULFATES, CHROMATES, MOLYBDATES and TUNGSTATES
Name origin: After the type locality at Ettringen, Rhineland-Palatinate, Germany.
|
 Specimen weight:10 gr.
 Crystal size:Up to 1,0 cm tall
 Overall size: 18mm x 18 mm x 35 mm
 Product Inquiry
 Minservice (Sondrio - Italy) Minservice Galleries Main
|
|
Product Inquiry
|
