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Stilbite & Hyalite

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Stilbite & Hyalite

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Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6.2 × 4.6 cm
Largest Crystal: 
3.50cm
Description

Outstanding for this locality, beautiful crystals of stilbite in its typical color in the club-like habit, some double-terminated, standing out upon hundreds of smaller, translucent stilbite crystals on matrix from the Erongo Mountains, Namibia. There is some water-clear hyalite, which glows intense neon-green under UV, covering the stilbite crystals.

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Mineral Data
What's on the rock

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White

Hyalite

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Streak: 
white
Video

Stilbite, Hyalithe 8.5x6.2x4.6cm Erongo, Namibia /insta:@weloveminerals

Seller Information

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-all items shown on displayed photos are for auction or fixed price. Some photos are close-ups, multiple photos show one and the same item

-all items are described and offered in all conscience but without guarantee for correctness -all items can be viewed locally after consultation with the seller

-all items are shipped with insurance (shipment without is possible but at own risk and without seller's responsibility and only after consultation with the seller)

-all items are shipped after full payment incl. shipping costs

-shipping is done once or twice a week

-time for payment is 7 days after auction closed bidding on my auctions declares your agreement with above terms and conditions

-we reserve the right to resell items won in auction or bought via fixed price if payment  isn't done in the time period of one month after initial invoicing and the buyer does not react to invoice reminders or e-mail contact in this time period.

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