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Opal-CT

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LGM577294

Opal-CT

Ex J. Sasamoto, Ex Dr. Krantz, Bonn, Germany
With Antique Label

Description Tabs

Description
Locality: 
Nagano Prefecture, Honshu Island, Japan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.8 × 4.8 × 2.2 cm
Weight: 
15.00gr
Description

The specimen features blueish balls, crusts and globular forms of opal-ct on a light, porous matrix. From Mount Koasama, a smaller cinder cone alongside the E slopes of the much larger Asama volcano.

Comes with nice antique J. Sasamoto label. Shinano was a historic province of Japan situated in modern Nagano prefecture.
"Pearlite" is an old synonym for opal-ct.

Mineral Data
What's on the rock

Opal-CT

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
0.0

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

If for any reason you are not happy with any aspect of your transaction, please let me know as soon as possible, ideally within 1 week of receiving your specimen.

I will happily do all in my power to resolve the situation to your satisfaction.

+++IMPORTANT+++
Paypal is NOT accepted within Germany! I will charge a supplement of 2.5% for paypal payments within Germany. Bank transfer / offline payment is without costs and usually also completed within one day.
Within EU countries, bank transfer is also possible but not mandatory. I will offer free shipping or a discount in some cases. Please ask after receiving your invoice.