I'm certain this info I'm about to post has much more significance to the geological team than to me because of my limited knowledge, but I'll post it anyways and see if unlocks any mysteries that others here might have insight into.

"Pyrite occurs as subhedral clots within the veins and as disseminated masses within altered and silicified wall rock. Molybdenite and chalcopyrite are also present in the vein and wall rock."

Here are some definitions to get us started, beginning with "Subhedral".

Subhedral (hypidiomorphic) An igneous textural term applied to crystals which are only partly bound by crystal faces. The irregular parts of the crystal surface may be cause by partial corrosion of the crystal or by partial intergrowth with other crystals.

Hypidiomorphic fabric A rock texture characterized by the presence of minerals some of which show their crystal form ( i.e. euhedral habits). 'Hypiditopic fabric' refers to sedimentary rocks, for igneous or metamorphic rocks, 'hypidiomorphic fabric' is used.

Sometimes crystals formed by precipitation grow from the walls of the solution's "container" ( e.g., a crack or pore in a rock). This process can form a spectacular geode, a mineral-lined cavity in a rock when water solutions pass through the rock. ( Portrait of a Planet, Stephen Marshak)

So, since my dictionary of Earth Sciences does not cover the word "clot" alone or in conjunction with "subhedral" it is left to us to determine what this means.

Seems to me the conditions were perfect for these crystalline structures to attempt to out-compete each other for space in this environment, so much so that as they crowded out their own kind, they grew a little irregularly in their form, to the point that they "clotted". I'm guessing clot means what it implies, it became almost an impediment, and slowed down the flow in that particular junction.

When you have conditions that are perfect for this type of growth, what are the implications? Does it mean we are getting closer to the source of this mineralization, as this crystal growth seems to imply over-saturation?

Anyways, I'm just curious to know if this is a breadcrumb in a trail of clues, or a red herring...

GLTAL