What household liquid has a density of 3gm/cm^3 to separate minerals?

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SUMMARY

The discussion centers on the separation of Quartz and Topaz crystals using a liquid with a density of 3 gm/cm3. The user seeks a household liquid that can achieve this separation, allowing Quartz to float and Topaz to sink. The conversation references heavy medium separation techniques commonly used for minerals, specifically mentioning ferrosilicon and water as a slurry for separating diamonds. The goal is to find a practical solution using readily available materials.

PREREQUISITES
  • Understanding of mineral densities, specifically Quartz and Topaz.
  • Knowledge of heavy medium separation techniques.
  • Familiarity with the properties of common household liquids.
  • Basic chemistry concepts related to density and buoyancy.
NEXT STEPS
  • Research the properties of ferrosilicon and its application in mineral separation.
  • Investigate alternative household liquids with densities around 3 gm/cm3.
  • Learn about the principles of buoyancy and density in mineral separation.
  • Explore DIY methods for creating a heavy medium separation slurry.
USEFUL FOR

This discussion is beneficial for mineral collectors, hobbyists in geology, and anyone interested in practical methods for separating minerals at home.

Panthera Leo
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Hello,

I have a bunch of Quartz & Topaz crystals from an alluvial deposit in a mixed parcel, & I would like to separate them in a quick & easy way... I thought of using a fluid with a density of 3gm/cm^3 so that the quartz float & the topaz sink...

Which liquid is applicable for this purpose?

It is preferred if the fluid could be made out of common material available at home! :smile:

I high appreciate your contributions & thanks in advance.
 
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If memory serves me correctly, they separate diamonds (relative density 3,5) from less dense minerals by heavy medium separation where the medium is a slurry of ferrosilicon and water.
 
Matcon said:
If memory serves me correctly, they separate diamonds (relative density 3,5) from less dense minerals by heavy medium separation where the medium is a slurry of ferrosilicon and water.

Thanks a lot Matcon!

This is a truly nice information...
 

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