ᐆᐸᓪ
Opal is a hydrated amorphous form of silica (SiO2·nH2O); ᐃᒪᖓᑕ ᐃᓗᓕᖏᑦ ᐊᑯᓐᓂᖓᓃᑐᐃᓐᓇᕆᐊᓖᑦ 3 ᑎᓯᒻᒧᑦ 21% ᐅᖁᒪᐃᓐᓂᖓᒍᑦ, ᑭᓯᐊᓂ ᐊᑯᓐᓂᖓᓃᒐᔪᑦᑐᖅ 6 ᐊᒻᒪ 10%.
ᐱᔾᔪᑎᒋᓪᓗᒍ ᐅᔭᕋᑦᑎᐊᕙᐃᑦ, ᓇᓗᓇᐃᖅᑕᐅᓯᒪᕗᑦ ᐅᔭᕋᒃᓯᐅᕐᕕᐅᓂᖏᓐᓂᒃ, ᐊᔾᔨᒋᙱᖦᖢᓂᐅᒃ silica-ᑎᑐᑦ, ᓇᓗᓇᐃᖅᑕᐅᓯᒪᓪᓗᑎᒃ ᐅᔭᕋᖕᓂᐊᒐᒃᓴᐅᓪᓗᑎᒃ. ᐃᓕᔭᐅᓯᒪᔪᖅ ᐆᓇᓗᐊᙱᑦᑐᖅ ᐊᒻᒪᓗ ᐅᔭᕋᖃᕋᔪᒃᖢᓂ, ᓇᓂᔭᐅᒐᔪᖕᓂᖅᐹᖑᓪᓗᓂ ᓕᒪᓐᑦ, ᓯᐅᕋᖅ, ᐅᔭᕋᒃ, ᒪᕐᕋᖅ, ᐊᒻᒪᓗ ᐅᔭᕋᒃ
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