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Natural Danburite

Danburite is a calcium borosilicate Ca(B2Si2O8) that was first discovered in Danbury, Connecticut. The original deposit is now buried under the city of Danbury.


  • There are 453 Danburite gemstones available at Multicolour.com
  • Danburite(s) are organized in the following categories: CalibratedPairSingle,  gemstones.
  • Our most expensive Danburite is USD 1292.00 and largest Danburite weight is CTS 26.82.
  • Our cheapest Danburite is USD 1.33 and smallest Danburite weight is CTS 0.13.

Find your Danburite

Our Danburite(s) are available in various shapes, sizes and colors. 453 Danburite(s), too many to look through? You may select any combination of search options. Colors grade into each other and you can search for more than one color at once. For a better selection, try selecting two or three colors, -- your first choice plus the two closest colors.

Shape Length (mm) Width (mm)
Category Weight (cts) Price (USD)
Color range
white
yellowish green
yellow
slightly purplish red
greenish yellow

Danburite Profile

Color information: White, yellowish, very light pink, buff colored, very light brown.
Pleochroism: 1.630(+.003,-.003) - 1.636 (+.003, -.003)
Chemical Composition: calcium borosilicate
Hardness: 7
Density: 3.00
Crystal Group: Orthorhombic
Ocurrence: Danbury, Connecticut and Russell, New York, USA; Charcas, San Luis Potosi, Mexico; Kyushu Island, Japan; Mogok, Burma and Uri, Switzerland; Madagascar.
Sign of the Zodiac: N/A
Month of the year: N/A
Danburite Danburite
With a hardness of 7, danburite is quite hard and suitable for any kind of jewelry. Because of itís high refractive index, well cut danburites are remarkably bright and can look something like diamonds. It is normally colorless to very light pink in color but some deposits may produce stones which can be shades of yellow or brown. Danburite handles easily and ordinarily offers no problems for lapidaries. It makes an especially brilliant gem because of its extreme clarity.

The luster is vitreous, and the cleavage is poor in one direction, -basal. The fracture is uneven to conchoidal and the streak is white or colorless. Crystal habits include generally prismatic crystals with a diamond-shaped cross-section. The terminations are steeply slanted producing a wedge like look.

Occurrences:

Primarily in metamorphosed limestones but also in low-temperature hydrothermal veins with sulfides and calcite. Associated Minerals include quartz, feldspars, cassiterite, dolomite, corundum, fluorite, iron sulfides, and calcite.

The bulk of todays danburite production is from the Charcas mineral district in the state of San Luis Potosi in Mexico. The deposit was discovered in 1574 and has been worked ever since for lead, zinc, copper and silver. The metal ore deposits are found in veins along faults in shales, limestones, volcanics, and monzonites. The danburite is a byproduct of the metal ore production. Well shaped and clean crystal terminations over twenty-five carats are rare and most pieces are average around ten carats.

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Finest gems/
Taaffeite Single
From our finest gemstones collection
Taaffeite Single Oval Eye clean to Slightly included
Size: 8.50 X 6.60 MM
Weight: 2.250 CTS
Shape: Oval
Clarity: Eye clean to Slightly included
Usually ships within 24 hours
OUR PRICE
USD 14616.00
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Deal of the Day/
Beryl Single
limited time offer, ref# ZBE100dh
Beryl Single Oval Slightly to Moderately included
Size: 6.90 X 4.90 MM
Weight: 0.730 CTS
Shape: Oval
Clarity: Slightly to Moderately included
Usually ships within 24 hours
10 % OFF, YOU SAVE 4.38 USD
NOW ONLY
USD 39.42
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Gemstone Variety: Hits Index
Going Down Amber -4730 -0.2%
average price USD 177.84 per item
Going Up Sapphire +863 +0.1%
average price USD 356.05 per item
Going Down Alexandrite -2409 -0.7%
average price USD 1502.02 per item
Going Down Color Change Garnet -867 -0.6%
average price USD 674.89 per item
Going Down Tanzanite -204 -0.1%
average price USD 533.27 per item
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