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What else can I help you with?
What helps pumice float?
The pumice is not very dense, if the mass of the volume of water displacement is greater than the mass of the rock it will float
What is the difference of a pumice and a slate?
Pumice is a porous rock and slat is not. Pumice floats in water because of the air pockets in the rock. Slate is a layer of rock that is tightly packed, or is very "dense".
Does pumice floats in water?
Porous lava rock is called pumice. If placed in water, it would float as it possesses a density that is less than water.
Which mineral is metallic silver very dense and an ore of lead?
The mineral you are referring to is galena. Galena is a dense, metallic mineral that is the primary ore of lead, composed of lead sulfide (PbS). It often appears in a crystalline form and is known for its high density and metallic luster.
Why does scoria have a similar texture to pumice but does not float on water like pumice?
Scoria and pumice are both volcanic rocks with gas bubbles trapped in their matrix, giving them a similar porous texture. However, scoria is denser than pumice due to its higher iron and magnesium content, which makes it sink in water whereas pumice, being less dense, floats.
Why does pumice float and scoria dosent?
Pumice is less dense than scoria. While they both have holes, pumices pore like holes trap air allowing it to float.
Is galena metal or nonmetal?
Galena is a mineral composed primarily of lead sulfide (PbS) and is classified as a metal ore. While it is not a metal itself, it contains the metal lead, which can be extracted from it. In its natural form, galena appears as a dense, metallic-looking mineral, often with a shiny surface.
What mineral is metallic silver very dense and an ore of lead?
Galena is an interesting ore of lead (lead sulfide). It can form in isometric crystals and has perfect 4 direct cleavage forming cubes.
Why does pumice float while a rock of similar size will sink in the same tank of water?
Pumice is porous and filled with gas bubbles, which make it less dense than water and causes it to float. In contrast, a solid rock of similar size is more dense and lacks air pockets, so it sinks in water.
What is the metamorphic form of pumice?
The metamorphic form of pumice is known as "pumiceite." This form of metamorphic rock is created through intense heat and pressure acting on pumice, which causes it to recrystallize and change its mineral composition. Pumiceite typically has a more compact and dense structure compared to pumice.
Is Earth the least dense of all planets?
No. In fact it is the most dense planet. The least dense is Saturn.
What is the dense part of the earth?
One could say that the atmosphere is the least dense, but of the surface the crust is the least dense.
