Synthetic Impregnated Opals

Coarse and Fine Crystalline Opals

Email us at goldberg@pinfire.deSynthetic Opals

Nanoparticles - Monodisperse Silica Particles (Microspheres & Nanospheres) Synthetic Opals - Black Opal, White Opal, Crystal Opal & Fire Opal

Coarse and Fine Crystalline Opals with a Non-Directional Play-of-Color

Synthetic Opals with a brilliant Play-of-Color

Black Opal, White Opal, Crystal Opal & Fire Opal. Literature.
Pinfire - Gems & Colloids

Literature about synthetic opals and opal imitations.

Gemmological Publications.

35 years On - A New Look at Synthetic Opal, Australian Gemmologist (2003), 21, 11, pp. 438-447.

Some Aspects of Opal Synthesis, Australian Gemmologist (2002), 21, 7, 278-282.


An investigation of the synthetic products of Gilson showing a play of colours, Journal of Gemmology (1984), 19, 1, pp. 27–42.

Untersuchung der neuen Opal-Imitation von Gilson, Zeitschrift der Deutschen Gemmologischen Gesellschaft (1983), 32, 2/3, pp. 119-125.

Investigations of Synthetic Opals.

Eine Untersuchung der opalisierenden Syntheseprodukte von Gilson, Zeitschrift der Deutschen Gemmologischen Gesellschaft (1983), 32, 2/3, pp. 107-118.

Japanische Opalimitationen aus Plastik, Zeitschrift der Deutschen Gemmologischen Gesellschaft (1983), 32, 1, pp. 59-68.

Microstructure and mechanical properties of synthetic opal: A chemically bonded ceramic, Journal of Materials Research (1986), 1, 5, pp. 667-674.

Observations on the Slocum Stone, Gems & Gemology (1977), 15 , 9, pp. 252-256.

Silica Particles
Synthetic Opal

Synthetic Opals - Publications.

Kristallisation übermolekularer Bausteine, Naturwissenschaften, 50 (14), 485-494.

Structural modification of synthetic opals during thermal treatment, Physics of the Solid State, 48, 7, 1280-1283.

Gilson Created Fire Opal Imitation with Play of Colours, Journal of Gemmology Vol. 19, No.1, p43.

Opal Imitations.

A Re-examination of Slocum Stone - with particular emphasis on inclusions, Journal of Gemmology Vol.19, No.7, p586.

Opalite Triplets - new imitations of opal, Journal of Gemmology, Vol. 23, No.8, 473-480.


New Synthetic Opal Made of Plastics, Australian Gemmologist, Vol. 14, pp. 213-218.

Imitation Opal, Australian Gemmologist, Vol. 13, No. 5, pp. 156-158

Monodisperse Silica Particles
Synthetic Impregnated Opals with Non-Directional Play-of-Color.