Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Mosandrite

Views:
Watches:
LGM880541

Mosandrite

Ex Dr. Krantz, Bonn, Germany
Type Locality

Share this by email

Description Tabs

Description
Locality: 
Langesundsfjorden, Larvik, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
9.5 × 11.5 × 4.5 cm
Largest Crystal: 
10.00cm
Weight: 
560.00gr
Description

Mosandrite is a Ti and REE-bearing silicate with a complex formula. Here we have brown, tabular crystals of mosandrite embedded in feldspar matrix. Accompanied by black mica. From the type locality. The orange-yellow mineral on the two last pics is likely wöhlerite.

Named in 1841 by Axel Joakim Erdmann in honor of Swedish chemist and mineralogist Carl Gustav Mosander (1797-1858) who had discovered and described the element Lanthanum in 1839. Mosandrite specimens may often shows signs of hydrothermally alteration. At the type locality (Låven, Langesundsfjorden, Norway) the alteration products may be a mixture of fluorite, pyrochlore, calcite, magnetite, pyrophanite and lorenzenite (cit. mindat).

Comes with beautiful antique Dr. Hübler, Altenburg label.
Brevig is a historical name associated with this locality.

Slightly radioactive due to content of U, Th and/or rare earth elements (appr. 1.0 micro Sv/h within spitting distance).

Mineral Data
What's on the rock

Mosandrite

Formula: 
(◻,Ca,Na)3(Ca,REE)4Ti(Si2O7)2[H2O,OH,F]4·H2O
Strunz: 
9.BE.20
Hardness: 
4.0
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

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.

Item Toolbox