DIAMOND crystals/cubes.  Educational-industrial grade.  Very nice crystal in gem case.  Approximately one-quarter carat.  For mineral hardness testing (No. 10 on Mohs scale).  Wonderful under a microscope.  About 1.5 mm.  In velvet gift bag.  $15.00

FLUORITE OCTAHEDRONS.  (see image) China.  These octahedral cleavages range in color from clear, purple and green.   Around 2".   Most larger ones are green.  Some smaller ones in purple or clear.  $9.50.  Bigger and larger ones may be available on request.

FOSSIL, Enchodus, saber-toothed salmon.  Cretaceous period (100 million)

Jawbones to vertebrae.  In matrix 3"-5". $15.  

METEORITES.  Nickel-iron.  Guangxi Province, China.  $3 each in gem case with gift bag.  Some larger ones available.

SHARK TEETH, fossilized.  Otodus obliquus. Eocene/Oligocene.  Approx. 20 million years. Single - $6. (Smaller singles sometimes available) In matrix -  $10-$25.  Can send images.

TEKTITE  Impact Crater Melted Rock. 

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"-2" in length. $3 each.  In gift bag.  Larger ones in the $25-$35 range.

KITS

PROPERTIES OF MINERALS - ES-500  - 18 compartment boxed set that explores not only Mohs 1-9 but other Properties of Minerals.  Minerals included are the 9 Mohs scale minerals mentioned above plus galena (heft, s.g.), magnetite (magnetism), "optical calcite" (birefringence), muscovite mica (cleavage), sulfur (color, smell), massive barite, crystalline barite, pyrite crystal, halite (salt).  Booklet with information on each item and photo ID.  Streak plates, glass plate, magnet.  $35          This has become our one of our top-selling boxed kits in the signature blue-linen box.

GREAT FOR TEACHERS! Earth Science Kit ES 200 and ES250 are both designed for the teacher in mind. Each kit contains 18 specimens in a compartmented box with photo identification, instructional booklet with detailed specimen and geology descriptions and explanations. Also included is a worksheet/chart that can be photocopied for each of your students, as well as ideas for easy hands-on activities and experiments. How do the two kits differ? Basically, ES200 is your "traditional" mineral and rock kit that contains samples of common rock-forming minerals and the rocks that they form. ES250 is a little "less traditional". It also contains samples that talk about basic geology. But it also uses other minerals to talk about economic uses of minerals, or interesting properties and processes. For example, galena demonstrates luster and cleavage; malachite demonstrates streak; magnetite represents magnetism; the rock cycle of quartz to sandstone to quartzite, etc.  Prices below.  In the signature blue-linen box.

Earth Science Kit ES-200. MINERALS ROCK! Common minerals and the rocks they form. 18 specimens. 6 minerals: quartz, calcite, muscovite mica, hornblende, microcline feldspar, biotite mica. 4 sedimentary: conglomerate, fossil limestone, sandstone, shale. 4 igneous: granite, diorite (intrusive); obsidian, pumice (extrusive or volcanic). 4 metamorphic: quartzite, slate, mica schist, gneiss. $30.35.

(Add $4.00 per set if you would like samples numbered)

Earth Science Kit ES-250 MINERALS RULE!  How minerals rule rocks and our daily lives. 18 specimens. 12 minerals: Rose quartz, quartz crystal, calcite cleavage, sulfur, halite, galena, golden barite crystal, magnetite with magnet, microcline, malachite, talc, petrified wood. 6 rocks: sandstone, shale, quartzite, obsidian, granite, slate. $30.35  

(Add $4.00 per set if you would like samples numbered)

MINERAL HARDNESS TEST KIT -  Mohs mineral hardness scale 1-9 (talc, selenite, calcite, fluorite, apatite, feldspar, quartz, topaz, corundum) - teacher size version.  Larger 2"-3" pieces (except for topaz and corundum) and identified by affixed number.  Boxed Teacher size includes streak plate, glass plate and nail, and instructional booklet.  $27.95 (Diamond crystals available on request, see above.)   Click here to see images. 

Polished Ammonites.  Matched small jewelry grade pair - $7.50.  In velvet gift bag.   Larger single halves, about 1.5 inch with good pattern and color - $6 for one, 2 for $10.