Rare Mineral Specimens - search page
- Availability
- Available
- Price
- $60.00
- Locality
- Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States
- Formula
- Mn2+8Si6O15(OH)10
- Size
- 3 x 1.5 x 2 cm - Thumbnail
Textbook free-standing peach colored Friedelite crystals to 1mm.
- Availability
- Available
- Price
- $75.00
- Featured
- Featured in Special Editions
- Locality
- no locality
- Formula
- Gd2O3
- Size
- 3.5 x 1 x 1 cm - Miniature
Gadolinium was discovered in 1880 It is named after the mineral gadolinite of the is named after the Finnish chemist Johan Gadolin. Gadolinium is found in Gadolinite.
- Availability
- Available
- Price
- $75.00
- Locality
- San Miguel mine, Moctezuma, Sonora, Mexico
- Formula
- (Cu,Fe,Ag)9Se8
- Size
- 2.3 x 2 x 1.4 cm - Thumbnail
- Tagged
- copper, selenium, silver
Silvery crystal grains to 0.5mm and in aggregates to around 2mm. The Geffroyite is scattered throughout the matrix not just the arrowed areas.
- Availability
- Available
- Price
- $75.00
- Locality
- Gorb, Lärchultini, Binntal, Wallis, Switzerland
- Formula
- Fe4Ti3AsO13(OH)
- Size
- 3 x 1.5 x 0.8 cm - Thumbnail
- Special Info
- Type Locality
Tiny 1mm and less acicular crystals throughout specimen. Graeserite is a rare titanium mineral with arsenic and found only in three places in the world.
- Availability
- Available
- Price
- $45.00
- Locality
- Salsigne mine, Salsigne, Aude, France
- Formula
- Ca5(AsO3OH)2(AsO4)2ยท9H2O
- Size
- 4 x 3 x 2.5 cm - Miniature
- Tagged
- arsenate
Colorless tabular crystals to 0.75mm of Guerinite with beautiful sprays of snow white Picropharmacolite to 4mm across.
- Availability
- Available
- Price
- $75.00
- Locality
- Dugdu alkaline complex, Tuva, Siberia, Russia
- Formula
- Ca2BeSi2O7
- Size
- Capsule
- Special Info
- XRD Confirmed
This is a tiny 1mm specimen with light yellow, flaky Gugiaite crystals attached to dark purple Fluorite. Gugiaite is a very rare beryllium oxide. Verified by Dr, Igor Pekov.
