Thames & Kosmos Mineral Discovery handleiding
Handleiding
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Translucency
YOU WILL NEED
INTERESTING!
Another thing you can do with minerals
is see if you can shine light through
them. This method is not used very
often, since foreign particles in the stone
can block the light and thus reduce
the validity of the test. Still, it is often
helpful for ruling out certain minerals.
Some of your minerals will not let any
light through, while quartz minerals are
always translucent.
Try it with a small flashlight. Hold the
flashlight up to one of your minerals and
carefully view the stone from the
opposite side. Note: Do not look directly
into the light. Which stones let light
through? Record your findings in the
table.
Aha!
Flint lets very little light through, even though
it belongs to the quartz group. This has to do
with the high quantity of foreign particles in it.
Slim flashlight, pen
10
MINERAL TEST 4
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Mineral Discovery |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 15886 MB |
