Rare Mineral Specimens - search page
- Availability
- Available
- Price
- $1,550.00
- Reduced Price
- $1,125.00
- Locality
- Amelia mine, Boleo, Santa Rosalia, Baja California, Mexico
- Formula
- KAg9Pb26Cu24Cl62(OH)48
- Size
- 3.5 x 3.5 x 2 cm - Miniature
- Tagged
- melange, copper
This is one of the bigger Boleite crystals you will ever see. IT is a whopping 1cm on edge with a number of smaller crystals. They don't get much bigger than this according to the Mineraolgical Record: Special Issue #1 (Mexico) January-February 1998 Volume 29 Number 1, page 38 under the description of Boleite the author states that "Cubic crystals of millimetric size (up to 5 mm) have been found in abundance, while those approaching a centimeter are very rare. Crystals of larger size (the record being 2.5 cm) are highly exceptional.....
Though the one corner has a small ding the price has been adjusted accordingly. Large crystals of Boleite like this are seldom seen on the market and one little ding should not distract from its overall beauty. Must be insured and extra shipping will apply. Ex Carter Rich (see Prov. tab).
- Availability
- Available
- Price
- $155.00
- Reduced Price
- $85.00
- Locality
- Långban, Filipstad, Värmland, Sweden
- Formula
- Ca2Mn2+(AsO4)2·2H2O
- Size
- 7 x 3.5 x 3 cm - Sm Cabinet
- Tagged
- arsenate
Superb specimen with colorless platy crystals of Brandtite crystals to 1mm at the black arrow. I do not know what the hemispherical, colorless crystals are...???
See prov. tab for label: Curtic Brandt ...
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Cobalt-Gowganda dist., Ontario, Canada
- Formula
- NiSb
- Size
- 7.5 x 4.5 x 3.5 cm - Sm Cabinet
A rich mass of Breithauptite from the Cobalt district of Ontario showing veinlets and rosette-like growth habits.
- Availability
- Available
- Price
- $95.00
- Locality
- Kamoyama mine, Kamp Mt., Ino, Kochi, Shikoku Island, Japan
- Formula
- Mn2+6AlSi6O18(OH)3
- Size
- 3.5 x 2.5 x 1 cm - Miniature
- Special Info
- Type Locality
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
This is a relatively new IMA mineral. It is a manganese aluminum silicate and is a dark yellowish black grain to 1cm at the arrow. However the entire rim of this specimen is Bunnoite.
- Availability
- Available
- Price
- $195.00
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- NaCaMg3(AsO4)3
- Size
- 6 x 4 x 3.5 cm - Sm Cabinet
- Tagged
- arsenate
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
- Special Info
- Type & Only Locality
- Special Info
- Author's Material
Calciojohillerite is a greenish to yellowish to almost colorless well-shaped, terminated crystals (about 1 mm) combined in clusters / crusts on basalt scoria altered by fumarolic gas. The specimen is very rich. It is one of the few study specimens from Igor Pekov's collection used to characterize the new mineral. It is not yet published but was approved in 2016.
A more detailed locality is: Arsenatnaya fumarole, Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia.
- Availability
- Available
- Price
- $95.00
- Locality
- Mt. Pyalkimpor, Lovozero Massif, Kola Peninsula, Russia
- Formula
- (Na,☐)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4
- Size
- 3.5 x 1.8 x 2 cm - Miniature
- Special Info
- Type Locality
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
Calciomurmanite is Na-Ca ordered analogue of murmanite. Murmanite does not contain calcium, only Na, by strict definition. Otherwise, you cannot tell these two minerals apart visually. Calciomurmanite crystals occur as thin plates and somewhat micaceous. The cleavage surfaces have a mother of pearl luster. This specimen was verified by Dr. Igor Pekov and was part of his study to define the mineral for publication. It is an approved IMA mineral, although not yet published.
