ganZi qarTuli miwisa

`TvalTaiSi~ Tormet Zvirfas qvas Soris aRwerilia
`Tovali ameTistoni~. bibliaSi igi moxseniebulia
`ameTistonis” da `meaTistonis” saxelwodebiT. xelnawer-
Ta institutis erT-erT xelnawerSi vkiTxulobT:
`ameTisti ars qua spekali, Tuali patiosani, vardis
ferovani an iisferi, an porfirisferi,romeli sosani
SerTuli iisferiT~ (s.-s. orbeliani: `ameTvistomi
wiTeli da iisferi~). Sua saukuneebSi ameTisti arc ise
iSviaTi qva iyo xatebisa da jvrebis, agreTve sxvadasxva
samkaulisa da tansacmlis Sesamkobad.
saqarTveloSi ameTisti cnobilia: TeleTis qedze,
yazbegis raionSi, jejoris xeobaSi (raWa), aWaraSi,
afxazeTSi napovnia tyvarCelTan mdinare maxmes xeobaSi.
ameTists pouloben plaJze, aqatTan da sardionTan
erTad. minerals iyeneben saiuveliro saqmeSi.
qalcedoni
qalcedoni kvarcis farulkristaluri, boWkovani
saxesxvaobaa. igi mesame klasis Zvirfasi qvaa, qimiuri
Sedgeniloba – SiO 2 . mTis broliviT magari da
gamWvirvale ar aris, magram ferebiT mdidaria. ra feris
qalcedons ar SexvdebiT – TeTrs, nacrisfers,
moyviTalos, mtredisfers, mwvanes, wiTels, muras da sxv.
ferTa aseTi gama ganapirobebs qalcedonis saxesxvaobebs.
qalcedonis SemadgenlobaSi 97-98%-SiO 2 -ia, 1-1.5%wyali.
minarevebis saxiT gvxvdeba rkinis, aluminis,
kalciumis Jangebi. simagre – 6-7, elvareba – cvilisebri,
gakrialebisas, minisebri an cximovanixdeba. bunebaSi
gvxvdeba mkvrivi masebis, naRvenTiformebis (Tirkmlisebri,
mtevnisebri) da konkreciebis saxiT.
57