justite

The studied results show that feather-like hardystonite crystallizes in R2O-CaO-ZnO-Al2O3-SiO2, systems and the macrocrystalline of it will be gotten in the low concentrations of SiO2 and Al2O3, It is evident that the tendency towards the crystallizing of Hardystonite decreases with the equimolecular substitution of K2O by Na2O when the .

本文通过大量的配方实验和ＯＭ、ＸＲＤ分析，系统研究了Ｒ２Ｏ－ ＣａＯ－ ＺｎＯ－ Ａｌ２Ｏ３－ＳｉＯ２系统锌黄长石析晶与组成和热处理温度间的相互关系。

Black pigments are complex, involving franklinite (ZnFe 2O 4), magnetite (Fe 3O 4) and hausmannite (MnMn 2O 4).

采用 X-射线衍射对甘肃马家窑文化时期马家窑类型 (公元前 32 80—公元前 2 740年 )彩陶颜料进行了分析研究 ,表明白色颜料以石膏与方解石为主 ,改变了以往认为白色颜料为高岭土的观点 ,并阐明了石膏作为彩陶白色颜料的工艺过程 ;黑色颜料以锌铁尖晶石、磁铁矿以及黑锰矿为主 ,首次在彩陶颜料中发现了锌铁尖晶

It was shown that the red pigment was made from hematite ( Fe2 O3) ,and the black pigments were chiefly made from franklinite ( Zn Fe2 O4) ,magnetite( Fe3O4) and hausmannite( Mn Mn2 O4) .

采用 X-射线衍射谱及 X-荧光光谱对马家窑文化半山、马厂类型 (约 2 74 0 a BC— 2 0 50 aBC)彩陶颜料进行了分析研究 ,第一次明确了黑、红复彩陶器的颜料成分 ,表明黑色颜料以磁铁矿、黑锰矿或锌铁尖晶石为主 ;红色颜料以赤铁矿为主 ,并首次发现锌铁尖晶石 。