Jewelry, Gems, & Minerals/course of geology


QUESTION: Dear Mr. Uwe Richard
I want to ask about identification tools of gemstones? I want to buy identification tools of gemstones such as Gemlogis tools, is it good and reliable? If doesn't according to you what identification tools which good and reliable? Thank you.

Kind regard,
Gilang Surya

ANSWER: This is a difficult question to answer. Sure, there are many tools around to do gemstone testing. The problem is interpreting the results given by those instruments correctly. Without proper training this will hardly work and you will come up with erroneous conclusions.

My advise: Before investing in expensive instruments, are there gemology training classes that are offered in your area? This would be a much wiser investment of you resources. Then instrumentation can be purchased wisely based on the knowledge obtained in these classes. Otherwise I fear that you will be rather disappointed in all the available instrumentation.

I hope this helps!

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QUESTION: Thank you for any help from Mr. Uwe Richard. Again i am really sorry for disturb you. I just want to make good relationship because your help very friendly and satisfied. Did you teach geology online for common people like me? How much the cost?

Hi there,

Unfortunately I do not do online education. However, since your interest is in gemstones, you could consider taking the distance learning courses from GIA. Here is a link to their distance learning offerings:
I hope that might help. They also introduce you to the use of specific instrument.

Jewelry, Gems, & Minerals

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Uwe Richard Kackstaetter, Ph.D. (Dr.K)


I can answer questions concerning minerals, mineralogy, gems, metals, and anything that has to do with geology. However, I am NOT a jeweler. Questions about values, settings, gem stone cuts and appraisals are best directed to other experts on this site. I can however aide in the identification of unknown mineral materials. As a public service and part as training for new geoscientists, our university department provides FREE mineral identification for individuals. Please contact me for details or go to for details..


I am a professor of applied geology and mineralogy with many hours of field experience. Furthermore, I enjoy recreational gold prospecting and mineral collecting. As a professor I am engaged in research concerning minerals and their occurrence.

Member of the GPAA (Gold Prospectors Association of America) as well as the Association of Environmental Geochemists. Member of the GSA (Geologic Society of America) Member of the AIPG (American Institute of Professional Geologists)

Here is a small sampling: Mineral-rock handbook: Rapid-easy mineral-rock determination : written for anyone interested in minerals and rocks - Proctor, Peterson, and Kackstaetter;Macmillan Pub. Co. (New York and Toronto and New York) Physical Geology Laboratory e-Manual [CD-ROM], Kackstaetter, Earth Science Education LLC Colorado Front Range Self-guided Geology Field Trips, Kackstaetter,

Ph.D. in Applied Geology and Mineralogy. I am actively teaching courses in mineralogy and a variety of field courses with mineral collecting opportunities. Background in precious metal exploration.

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