求助！

天天向上

能帮忙解释一下    apatite      吗  我不是学地质的。     在文献中看到这个词和    phosphorite  分不清楚  以及二者有什么关系？
万分感谢！

封雪刃

...

天天向上

封雪刃 发表于 2011-12-16 20:36
apatite:1.  板磷钙铝石 2.  磷灰石
phosphorite:1.  磷钙土
                   2.  磷灰岩

谢谢啊 我再查查看 ，也许文献读完了会有个结果。

好肥一棵树

楼主学什么的，是学岩土工程方面的么？
还有把上下文也发出来看看呗

好肥一棵树

封雪刃 发表于 2011-12-16 20:36
apatite:1.  板磷钙铝石 2.  磷灰石
phosphorite:1.  磷钙土
                   2.  磷灰岩

光搬词典有什么用

天天向上

好肥一棵树 发表于 2011-12-16 20:52
楼主学什么的，是学岩土工程方面的么？
还有把上下文也发出来看看呗

谢谢关心啊  我是学口腔的   与矿物 晶体有关系 那个是pdf格式  我试试 把上下文粘上

天天向上

好肥一棵树 发表于 2011-12-16 20:52
楼主学什么的，是学岩土工程方面的么？
还有把上下文也发出来看看呗

The world deposits of natural calcium orthophosphates
are estimated to exceed 150 billion tons;
from which approximately 85% belong to phosphorites
and the remaining 15% belong to apatites
谢谢啊

天天向上

好肥一棵树 发表于 2011-12-16 20:52
楼主学什么的，是学岩土工程方面的么？
还有把上下文也发出来看看呗

Approximately 70 years afterward the idea
on existence of different crystal phases of calcium
orthophosphates was introduced [2]; mixtures of calcium
orthophosphates had been called apatites1 until
then.

天天向上

好肥一棵树 发表于 2011-12-16 20:52
楼主学什么的，是学岩土工程方面的么？
还有把上下文也发出来看看呗

Calcium orthophosphates are abundant in both nature
and living organisms. Geologically, natural calcium
orthophosphates are found in different regions mostly
as deposits of apatites (mainly as natural fluorapatite
(FA), chemical formula Ca10(PO4)6F2) or phosphorites
[8, 11]. The chemical composition of the latter cannot
be described so easily. As phosphorites belong tosedimentary deposits, their general appearance and the
chemical composition vary a lot. It is a common
practice to consider francolite (or carbonate-hydroxyfluorapatite
regarded as its synonym) as the basic
phosphorite mineral [11–15]. A cryptocrystalline (almost
amorphous) variety of francolite (partly of a
biological origin) is called collophane (synonyms:
collophanit, collophanita, collophanite, grodnolite,
kollophan) [16]. It occurs in natural phosphorites
predominantly as fossil bones and phosphatized microbial
pseudomorphs: phosphatic crusts of chasmolithic
biofilms (or microstromatolites) and globular clusters
with intra-particular porosities [17]. Natural phosphorites
(therefore, francolite and collophane as well)
occur in various forms, such as nodules, crystals, or
masses. The world deposits of natural calcium orthophosphates
are estimated to exceed 150 billion tons;
from which approximately 85% belong to phosphorites
and the remaining 15% belong to apatites [18].

convans

天天向上 发表于 2011-12-16 21:11
Calcium orthophosphates are abundant in both nature
and living organisms. Geologically, natural c ...

。。。。。。。。。。。。