This, the fourth paper on Scottish Mineral GCR sites, deals with minerals produced during the late stages of granitic rocks creation. Five sites are described and interpreted, encompassing both minerals within intrusive rocks and those which formed in the adjacent country rocks. The former range from previously-mined, porphyry-style copper-molybdnum sulphide concentrations to one of the few Scottish occurrences of tungsten mineralisation. Mineral deposits formed in mostly calcareous country rocks by the exchange of elements between granitic bodies and them are generally referred to as skarns. They are geographically more widespread than the within-granite bodies, and comprise calc-silicate minerals such as diopside, grossular garnet, wollastonite and, more rarely vesuvianite. In one instance, the skarns contain a wide range of mineral assemblages including some with boron fluoride minerals and mineable concentrations of iron ore. Probably the most enigmatic of these is an apparent exoskarn type assemblage but is devoid of an associated granite.

这是关于苏格兰矿物 GCR 场地的第四篇论文，涉及花岗岩形成后期产生的矿物。描述和解释了五个地点，包括侵入岩中的矿物和在相邻围岩中形成的矿物。前者的范围从以前开采的斑岩型铜钼硫化物浓度到苏格兰为数不多的钨矿化矿点之一。通过花岗岩体与它们之间的元素交换在大多数钙质围岩中形成的矿床通常被称为矽卡岩。它们在地理上比花岗岩内部分布更广泛，并且包含钙硅酸盐矿物，例如透辉石、钙铝榴石、硅灰石，以及更罕见的维苏威石。在一种情况下，矽卡岩包含范围广泛的矿物组合，包括一些含有氟化硼矿物和可开采浓度的铁矿石。其中最神秘的可能是一个明显的外岩型组合，但没有相关的花岗岩。