Excellent specimen of hydroboracite, with a very good size, formed by numerous radial aggregates of acicular crystals. Very good brilliance, transparence and with color zoning, between colorless to slightly honeyed. This specimen has a former owner's handwritten label. A display museum specimen.

Excellent specimen of hydroboracite, with a very good size, formed by numerous radial aggregates of acicular crystals. Very good brilliance, transparence and with color zoning, between colorless to slightly honeyed. This specimen has a former owner's label fixed to the back side. A display museum specimen.

Rich radial aggregates of hydroboracite crystals, colorless to white, with a very intense adamatin luster. SEM-EDS analysis show the absence of sodium, with magnesium and calcium predominant. Boron can not be observed with this spectroscopic technique. Turkey is one of the largest producers of borates in the world, with reserves that surpass those of other countries such as USA, China or Russia. The borate works are located a few miles SE of Kestelek. Spectacular fluorescence yellow for hydroboracite and orange for probertite.

Rich radial aggregates of hydroboracite crystals, colorless to white, with a very intense adamatin luster. SEM-EDS analysis show the absence of sodium, with magnesium and calcium predominant. Boron can not be observed with this spectroscopic technique. Turkey is one of the largest producers of borates in the world, with reserves that surpass those of other countries such as USA, China or Russia. The borate works are located a few miles SE of Kestelek. Spectacular fluorescence yellow for hydroboracite and orange for probertite.