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Glass Hardness Plates

Avg. Ratings: 4.3 (3 Reviews)
These plates help you determine the hardness of unknown minerals in the field.

  • Plates Determine How Hard Minerals Are
  • System Uses Mohs' Scale
  • Ideal for Unknown Minerals in the Field
  • Custom-Swiped Edges Reduce Risk of Injury
  • Simple-to-Use
Scratch your mineral across the plate determine how hard it is. If the mineral scratches the plates, it’s harder than five on the Mohs’ hardness scale.

The custom-swiped edges reduce risk of accidental injury when handling.



Item # Description L x W x H Unit Availability Price Quantity
470148-652 Glass Hardness Plates
3 x 2 x 1/4" Case of 500 Retrieving
Pack of 10 Retrieving


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Total Ratings: 3
Avg. Ratings: 4.3 out of 5

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Was this review helpful? Yes No
Yes: 0 No: 0 user Education / Teacher / New York
Yes, I recommend
The plates arrived on time, well protected, with a bit too much packaging. They are durable.
Was this review helpful? Yes No
Yes: 0 No: 0 
TannerWC Education / Laboratory Coordinator / Russellville, AR
Yes, I recommend
These hardness plates are of the highest quality. They are thick enough that student's don't crack them applying pressure. I recommend these for any geology laboratory!
Reply associate Published 01/23/2017
Thank you for sharing!
Was this review helpful? Yes No
Yes: 1 No: 0 
mg Indiana
Yes, I recommend
Best quality available today! - We have ordered less expensive glass slides from other companies, but always end up ordering these hardness plates from Wards. They are the best quality, and therefore end up being more economical.
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