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Calcite & Ettringite

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SMS1042510

Calcite & Ettringite

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Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.4 × 2 cm
Largest Crystal: 
0.60cm
Weight: 
12.43gr
Description

The specimen has prismatic hexagonal dipyramidal crystals of canary yellow ettringite with translucent white calcite and minor orange micro crystals of andradite. The ettringite are varied on the length of the c-axis with some crystals prismatic and doubly terminated and some crystals stubby doubly terminated, short on the c-axis down to an almost purely hexagonal crystals. The largest crystal to 6mm.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Aragonite and Vaterite
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Ettringite

Formula: 
Ca6Al2(SO4)3(OH)12·26H2O
Strunz: 
7.DG.15
Hardness: 
2.0 - 2.5
Type Locality: 
Ettringer Feld, Western lava flow, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany

Current price

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$10
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Shipping Information

Postage Area Price
Europe up to 500 grams
$12
Europe up to 1 kilogram
$16
United States up to 500 grams
$14
United States up to 1 kilogram
$18
Rest of world up to 500 grams
$14
Rest of world up to 1 kilogram
$18
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Shipping Policy:

Processing Time: Paid orders are typically processed and shipped within 2 to 3 business days.

Estimated Delivery Time: Once shipped, the estimated delivery time is 4 to 7 business days worldwide.

Shipping Carrier: Orders are shipped using FedEx International Priority.

Important Notes:

Customs and Import Taxes: Buyers are responsible for any customs and import taxes that may apply.

Customs Examinations: International shipments may undergo random customs examinations, potentially causing delays. We are committed to assisting you in tracking your parcel during such situations.

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Combined Shipping: We do offer combined shipping. The cost is $4 added to the shipping cost per additional 500 grams. Please note that the packaging weight also needs to be taken into account. The average packaging weight is 150 grams to 300 grams for larger parcels.

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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