This song is available on Kathleen Wiley's "Science Songs"

Talc rubs off with your fingers
And gypsum is scratched with a fingernail.
Calcite is scratched with a penny
But fluorite must be scratched with a nail,
And we are learning
The MOHS Rock Hardness Scale
And it is plain to see that

Apatite is harder than fluorite
But also must be scratched with a nail.
Feldspar can be scratched with a file
And quartz can scratch some glass so pale,
And we are learning
The MOHS Rock Hardness Scale
And it is plain to see that

Topaz scratches quartz,
Corundum scratches unglazed tile.
Diamonds are the hardest,
And we can now rest for awhile,
For we have learned
The MOHS Rock Hardness Scale.
From softest to the hardest it goes:
Talc, gypsum, calcite, fluorite, apatite,
Feldspar and quartz, topaz, corundum
And diamonds, they are the hardest ones, of course.
So we've all learned
The MOHS Rock Hardness Scale.
So if you want to
Give me a rock please make it a diamond!

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Many thanks to Kathleen Wiley for permission to display these lyric excerpts.
© Kathleen Wiley – Music for Kids© Series. All rights reserved. Used with permission.

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