EISCO Moh's Hardness Kit, 12 Pieces - Includes 9 Rock & Mineral Specimens, 1" Each - Geology Activity for Exploring & Identifying Minerals Using Moh's Hardness Scale - Tech Cut Rocks
from $24.89
Landical Moh's Hardness Test Kit 11 Piece Mineral Hardness Kit Include 9 Rock Mineral Specimens and 2 Unglazed Porcelain Streak Plates for Exploring Identifying Studying Geology and Earth Science
from $13.99
American Educational Hardness Collection with Test Kit
from $23.75
Mohs' Hardness Test Kit for Industrial Applications
from $130.00
United Scientific Mineral ID Kit - 7 Pieces - Includes Streak Plates, Glass Plate, Dropper Bottle, Magnet, Nail, & Hand Lens - Great for Geology Classrooms & Basic Field Testing
from $7.99
EISCO Mineral ID Kit - 7 Pieces - Includes Streak Plate, Glass Plate, Dropper Bottle, Magnet, Nail, Copper Square & Retractable Hand Lens - Great for Geology Classrooms & Basic Field Testing
from $17.49
Rocks & Minerals (Quickstudy Reference Guides - Academic)
$6.26
from $2.78
ADIOS! Hot Tub Hard Water Calcium Remover with Scale and Stain Clarifier, Soften Treat and Reduce Spa Deposits - Quart (32 oz)
from $17.95 ($0.56 / Fl Oz)
Yantra Mohs Hardness Scale Set Streak Magnetism Test in Rocks and Minerals with All Accessories, Tools and Instruction Manual
from $77.00
RO Membrane Cleaning Cartridge | Acid Membrane Cleaner to Remove Mineral Scale, Hardness, Iron and Other Scaling | Loaded in Cartridge to fit 20” Big Blue Housing | Applied Membranes C-C4220-A11
from $110.21
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