From earth to lustre
Insights
GeoLustre Journal.
Notes on gemology, geology, mining and exploration — written to make gemstone projects easier to understand.
Natural, treated or synthetic: why the distinction matters
Three stones can look almost identical and still be entirely different propositions. Gemology exists to tell them apart.
Read the articlePrimary and secondary deposits: two ways to find a gemstone
Some gems are found in the rock where they grew. Many more are found where weathering and water have carried them.
Five questions to ask before evaluating a gemstone mining opportunity
Good stones in a parcel are a starting point, not a conclusion. These questions help separate a signal from a story.
Begin the conversation
Let’s discuss what lies beneath.
Whether you are evaluating a deposit, planning exploration or need a gemological opinion, start with a short description of the project.