Opal mai Mondulkiri, Cambodia - Hou Hou 2022 - Video

E kūʻai i ka opal maoli ma kā mākou hale kūʻai pōhaku

ʻOpal Cambodia

ʻO ka Opal kahi ʻano amorphous hydrated o ka silica (SiO2 nH2O); Hiki ke ʻokoʻa kona ʻano wai mai ka 3 a hiki i ka 21% ma ke kaumaha, akā ʻo ka maʻamau 6 a 10%. Ma muli o kona ʻano amorphous, ua hoʻokaʻawale ʻia ʻo ia ma ke ʻano he mineraloid, ʻokoʻa me nā ʻano crystalline o ka silica, i helu ʻia he mineral.

Waiho ʻia ma kahi mahana haʻahaʻa a hiki ke loaʻa ma nā ʻāwaha o nā ʻano pōhaku like ʻole, ka mea maʻamau me ka limonite, sandstone, rhyolite, marl, a me ka basalt. ʻO Opal ka pōhaku makamae aupuni o Australia.

ʻO ke ʻano o loko o ka waihoʻoluʻu pāʻani o ka opal e hoʻomaʻamaʻa māmā. Ma muli o nā kūlana i hana ʻia ai, hiki ke lawe i nā kala he nui. ʻO nā pōhaku mai ke keʻokeʻo, hina, ʻulaʻula, ʻalani, melemele, ʻōmaʻomaʻo, uliuli, poni, ʻulaʻula, ʻulaʻula, slate, ʻoliva, ʻeleʻele a me ka ʻeleʻele.

ʻO kēia mau aka, ʻo nā pōhaku ʻeleʻele ka mea liʻiliʻi loa, ʻoiai ke keʻokeʻo a me ka ʻōmaʻomaʻo ka mea maʻamau. ʻOkoʻa nā opals i ka density optical mai ka opaque a i ka translucent.

Hōʻike ka pāʻani opal o ka waihoʻoluʻu i ke ʻano like ʻole o nā waihoʻoluʻu o loko a, ʻoiai he mineraloid, he ʻano i loko. Ma kahi unahi microscopic, ua haku ʻia ka opal pāʻani kala me nā pōʻai silica 150 a 300 nm ke anawaena i loko o kahi mākia hexagonal a i ʻole cubic mānoanoa.

Ua hōʻike ʻo JW Sanders i ka waena waena o 1960 ua hoʻopuka kēia mau ʻāpana quartz i nā kala o loko ma o ka hoʻopilikia ʻana a me ka ʻokoʻa o ka mālamalama e hele ana ma ka microstructure opal.

ʻO ka nui kūpono a me ka hoʻopili ʻana o kēia mau lei e hoʻoholo i ka maikaʻi o ka pōhaku. Aia ka mamao ma waena o nā mokulele i hoʻopaʻa mau ʻia o nā pōʻai ma kahi o ka hapalua o ka lōʻihi o ka nalu o ka ʻāpana kukui ʻike ʻia, hiki ke hoʻokaʻawale ʻia ke kukui ma ia lōʻihi nalu ma o ka pae kuʻi i hana ʻia e nā mokulele i hoʻopaʻa ʻia.

Hoʻoholo ʻia nā kala i ʻike ʻia e ka mamao ma waena o nā mokulele a me ke ʻano o nā mokulele e pili ana i ka mālamalama hanana. Hiki ke wehewehe ʻia kēia kaʻina hana e ke kānāwai Bragg diffraction.

Opal mai Mondulkiri, Cambodia.

E kūʻai i ka opal maoli ma kā mākou hale kūʻai pōhaku