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ADAMITE, SP-5.
Mexico. Good, green
sometimes available.
Class pack of 20 3/4" crystals - $12.50. Displays crystals formed in the tetragonal system. Also have larger clusters individually priced.
1 " to 1.5 " single tabular xls in lots of ten only. $15.00
Some larger edu sizes available. Check for availability. BARITE Roses, SP-16A. Cost $8 -$14.00 ea. Oklahoma Classic barite "rosettes" from this famous locality. Individual "roses" and groups. Very well formed and no damage. Also called desert "sand" roses. Individual specimens available.
DIAMOND crystals/cubes. Hand picked Educational- grade. Please contact us for prices on these affordable samples.
DOLOMITE, SP-17. Montana. Cost NCleavage rhombs, indistinguishable from calcite by sight. Perform weak HCl test. Trace iron oxide contaminate. Class packs of 20 - 25.00. Limited stock.
FLUORITE OCTAHEDRONS. (see image) China. These octahedral cleavages range in color from clear, purple and green. 3/4"-1"at $3.50 each/ 10 for $30.00. Larger sizes (around 2") range in price from $5.00 to $25, averaging $6.50 each. Clearly demonstrate the eight sides of this cleavage/crystal form.
FOSSIL, Enchodus, saber-toothed salmon. Cretaceous period (100 million) Jawbones to vertebrae. In matrix 3"-5". $10
OBSIDIAN ARROWHEADS. fracture and chipped tool technique. 2-2.5 inches. $.75 each. 20 for $12.
Red pseudo oolitic "ironstone" - Class pack of 20 - $10.00. Check.
colorless to white crystals, sometimes with small calcite crystals on
KYANITE,
Brazil.
Coarse crystalline blue, bladed aggregates or blades with quartz. 2 to 5 inches in length. Very good quality, bluer than the
above photo indicates. Priced
individually by length, Most from $1 to $5. Some larger and better are priced higher - inquire. Class pack of 20 - $8 to $12, depending on size. But all nice pieces.
METEORITES. Nickel-iron. Guangxi Province, China. Most are $1 each. Some larger by gram weight.
PENNSYLVANIA CRUDE OIL, SP-42 Appalachian Basin, Pennsylvania and Michigan Basin, Michigan. Two crude oils consisting of saturated paraffin hydrocarbon compounds available - light (sweet) and heavy (sour). Pennsylvania Crude is mostly a light sweet crude that does not have the high levels of sulfur that other crude oils have. Available in 4 mL, 40 mL, 100 mL and 250 mL bottles. The "sour" heavy crude is also available from the Michigan Basin. We will be updating the petroleum section soon. Not all sizes available for every type. Inquire. New sizes. (Ask about new types and locations - Basrah Light from the Zubair Zone, Iraq; Arab "D" Zone and Lower Ratawi Zone in Saudi Arabia; etc. These new types vary in size and price. We also now have extra light and extra heavy.)
40ml bottle - $4.00 each 100 mL - $8.50 each 250 mL $16 each
Detailed explanation included of content and difference between petroleums. Smaller two-bottle sets of one each type also available until stock runs out, 4 mL each, (1 sweet and one sour), but check availability. Small set of two 4 mL bottles is $6. These oils work well in a "fossil fuel" unit using oil shale and oily sandstone for the petroleum series; may also compare it to the coal fossil fuel series, using peat and the three coals - lignite, bituminous, and anthracite.
PERIDOT with BASALT, See in Igneous Rock Section. IG-20-P. Cost L. San Carlos Indian Reservation, Arizona. Rich clusters of consolidated peridot sand. Crystal size up to 3 mm with surrounding basalt matrix. No class pack of 20 pieces. 1x2 size and up. Presently only larger cabinet size pieces available. Nice display pieces.
PYRITE CUBES. Spain. (Click link for image) Currently have 1 cm to 4 cm cubes. Price range $1.50 for smallest (1cmx1cmx1cm) to $40 each. Inquire for size availability.
RHODONITE,
SP-43. Peru. Cost J. Good
pure masses. Beautiful deep pink color,
SHARK TEETH, fossilized. Otodus obliquus. Eocene/Oligocene. Approx. 20 million years. Single - $6. (Smaller singles sometimes available) In matrix - $10-$25. Can send images.
SPESSARTINE GARNET, SP-45D. China. Lustrous crystal clusters and masses. Two colors - orange-red (what many consider the "typical" spessartine color); and deep wine to bright red. From class pack of 20 size to cabinet size. Some
on matrix with smoky quartz and/or feldspar and mica. Inquire if
interested.
TEKTITE (Lei gong mo) SP-57 - Impact Crater Melted Rock. Guangdong, China. Tektites are pieces of glass formed when a large meteorite strikes the Earth. They look similar to obsidian glass but chemically can be differentiated from obsidian. Tektites are closer to shale in composition. These "splash-form" tektites have rounded, aerodynamic shapes such as spheres, tear-drops, dumbbells, and disks. Approximately 1" in length. $1 each. 20 for $15.
Larger - $1.50 to $5 each.
Not always available. Class pack of 20 - $18.00.
THENARDITE, SP - 61. Cost E. California. Dark gray to black sharp crystals and groups of this classic evaporate mineral. Beautiful crystals for the species from
this world-famous locality.
YTTRIUM GARNET (ANDRADITE with YTTRIUM). Mina Prieta Linda, Chihuahua, Mexico. Clusters of deep reddish black crystals on matix. 1x2s, 2x3s and 3x4s (in inches). 1x2s are priced between $9 and $16 depending on crystal size and quality. Crystal faces up to 2 cm. 2x3s and
3x4s (inches) are priced between $16 and $45. Very lustrous.
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