There are 52 minerals sized at thumbnail.
Click on the mineral photo to see additional views of the specimen.
A very well defined, medium olive green grossular trapezohedron with minor matrix attached. Lustrous, with some gemmy areas, and a textbook crystal.
Location: Vilyui River Basin, Saha Republic, East. Siberai Region, Russia
Dimensions: 2.3 x 2.2 x 1.8cm
Very bright and lustrous plates of hematite to 2 cm host bright red rutile crystals and are associated withy gemmy quartz crystals. Classic TN!
Location: Cavradi Gorge, Val Cunera, Grischun, Szitzerland
Dimensions: 2.4 x 1.6 x 1cm
A group of exquisite pink-orange, lustrous crystals of hureaulite in a 360 degree spherical rosette formation. Ex M. Zinn coll., who acquired it in a trade with Larry Conklin in 1989.
Location: Joao Claim, Conselherio Pena, Minas Gerais, Brazil
Dimensions: 3.6 x 2.8 x 2.7cm
Size: Miniature, Thumbnail
Locality: South America
A simple cube of metallic grey black lueshite, with fairly sharp corners and decent luster. This is a rare sodium niobium oxide and comes from the type locality. It is also fairly large and sharp for the species.
Location: Lueshe Mine, Kive, Congo
Dimensions: .8 x .7 x .7cm
A jet black crystal of manganite with smaller crystals attached. Minor contac at the rear of the termination. Excellent TN from this classic European locality!
Location: St. Andreasberg, Harz Mtns., Neidersachsen, Germany
Dimensions: 2.9 x 1.2 x .7cm
Four intergrown, very sharp, light tan crystals of olmiite to 1 cm on a bit of matrix. ExcellentTN of this rare (and newly described) manganese analog of poldervaartite found early this decade and now properly recognized as olmiite.
Location: N'Chwaning II Mine, Kalahari Manganese Fields, Kuruman, South Africa
Dimensions: 2.2 x 1.3 x 1.2cm