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Alexandrite (synthetic)

Protocol number:	M0099208
Industry:	Geology / mineralogy
Feed Size:	<8mm
Desired Fineness:	< ap 200µm

Result 1

	Planetary Mono Mill PULVERISETTE 6 classic line 600 rpm
Equipment:	80 ml silicon nitride 5x20 mm silicon nitride
Feed quantity:	12 g
Feed Size:	<8 mm
Grinding time:	10 min
Final fineness:	< ap 200 µm
Comments:	The reuslt is only achievable by intermediate grinding and sieving of rough particles. Otheriwse after app. 2min the sample is already extremly sticking.

Result 2

	Planetary Mono Mill PULVERISETTE 6 classic line 600 rpm
Equipment:	80 ml silicon nitride 5x20 mm silicon nitride
Feed quantity:	11 g
Feed Size:	<8-10 mm
Grinding time:	2 min*
Final fineness:	result: 64% between 20 to 125 µm

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FRITSCH GmbH - Milling and Sizing

Industriestrasse 8
55743 Idar-Oberstein

Phone +49 67 84 70 122

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