Laboratory

Compact mortar and pestle light enough to carry in the field.  Dimensions: 3-1/4" high, with an inside diameter of 3"; outside diameter at the top is 3-3/4".  Pestle is 6" long.  Shipping weight 6 lbs.

A kit used in determining the hardness of samples.  There are 9 specimens for comparative testing for Mohs hardness values from 1 to 9. Comes in a 7-1/4 x 4-3/4 x 1-3/8 " box with instructions. Shipping weight 2 lbs.

Plastic pouch contains a streak plate, glass plate, acid bottle, magnet, knife and a hand lens. Shipping weight 1 lb.

Brass blowpipe, 10".  Made in England.  Shipping weight 12 oz.

For use in testing a mineral's streak color. Unglazed porcelain ceramic tile. Each tile is 2 x 2". Priced per package of 10. Shipping weight 2 lbs.

Chemically prepared, dense and smooth, blocks for blow pipe work. 1 1/2 x 2 1/4 x 3 1/4". Shipping weights: 1 block: 8 oz.; 6 blocks, 2 lbs.

Box of 12 charcoal sticks for blow pipe work. Each stick measures 3/4 x 1 x 4 1/2". Shipping weight 1 lbs.

2" of 26 gauge platinum wire with loop at one end. Mounted in a 4" long fire polished pyrex glass rod. Shipping weight 1 lb.

Slide lock; nickel plated, smooth points. 4 3/4" long. Shipping weight 6 oz.

Made of domestic plain steel; smooth point, 4 3/4" long. Shipping weight 6 ozs.