Ametrine

bolivianitas
Ametrine, also known as trystine or by its trade name as bolivianite, is a naturally occurring variety of quartz.wikipedia
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Amethyst

amethystsA'''methystAmethystos
It is a mixture of amethyst and citrine with zones of purple and yellow or orange.
When partially heated, amethyst can result in ametrine.

Quartz

rock crystalquartz crystalcitrine
It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Ametrine, also known as trystine or by its trade name as bolivianite, is a naturally occurring variety of quartz.
It is then referred to as ametrine.

Bolivia

BOLBolivianPlurinational State of Bolivia
Almost all commercially available ametrine is mined in Bolivia. Legend has it that ametrine was first introduced to Europe by a conquistador's gifts to the Spanish Queen in the 1600s, after he received a mine in Bolivia as a dowry when he married a princess from the native Ayoreos tribe.

Oxidation state

oxidation numberoxidation statesoxidation
The colour of the zones visible within ametrine are due to differing oxidation states of iron within the crystal.

Iron

FeFe 2+ Fe(III)
The colour of the zones visible within ametrine are due to differing oxidation states of iron within the crystal.

Crystal

crystallinecrystalscrystalline solid
The colour of the zones visible within ametrine are due to differing oxidation states of iron within the crystal.

Temperature

temperaturesair temperaturewarm
The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.

Europe

EuropeanEUEuropean continent
Legend has it that ametrine was first introduced to Europe by a conquistador's gifts to the Spanish Queen in the 1600s, after he received a mine in Bolivia as a dowry when he married a princess from the native Ayoreos tribe.

Conquistador

conquistadorsconquistadoresSpanish conquistadors
Legend has it that ametrine was first introduced to Europe by a conquistador's gifts to the Spanish Queen in the 1600s, after he received a mine in Bolivia as a dowry when he married a princess from the native Ayoreos tribe.

Spain

SpanishESPKingdom of Spain
Legend has it that ametrine was first introduced to Europe by a conquistador's gifts to the Spanish Queen in the 1600s, after he received a mine in Bolivia as a dowry when he married a princess from the native Ayoreos tribe.

Dowry

dowriestochertrousseau
Legend has it that ametrine was first introduced to Europe by a conquistador's gifts to the Spanish Queen in the 1600s, after he received a mine in Bolivia as a dowry when he married a princess from the native Ayoreos tribe.

Ayoreo

YanaiguaZamucoAyoreo people
Legend has it that ametrine was first introduced to Europe by a conquistador's gifts to the Spanish Queen in the 1600s, after he received a mine in Bolivia as a dowry when he married a princess from the native Ayoreos tribe.

Silicate minerals

silicate mineralphyllosilicatephyllosilicates
Ametrine is composed of silicon dioxide (SiO 2 ) and it is a tectosilicate, which means has is a silicate framework linked together through shared oxygen atoms.

Silicon dioxide

silicasiliceousSiO 2
Ametrine is composed of silicon dioxide (SiO 2 ) and it is a tectosilicate, which means has is a silicate framework linked together through shared oxygen atoms.

Yellow

List of minerals

A list of mineralsList of minerals (short list)Mineral

Huáscar Aparicio

In 2004, Huáscar participated in a competition based on the exhibition of precious stones known as bolivianitas, which inspired him to compose the song entitled La bolivianita.

Gemstone

gemgemsgemstones
Most citrine is made by heating amethyst, and partial heating with a strong gradient results in “ametrine” – a stone partly amethyst and partly citrine.