Which is the hardest metal among non-metallic minerals?

Diamond

[{"selector":"#anim-496dbc6a-c5ea-4c70-ae64-229ed3339a82 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6120143b-1945-417d-bbf5-0c703e5f710e","keyframes":{"transform":["rotate(-540deg) scale(0.1)","none"],"opacity":[0,1]},"delay":0,"duration":1000,"fill":"both","iterations":1}]

In which rocks are non-metallic minerals found?

[{"selector":"#anim-72a7b96e-dc49-4711-9293-9fbe97d3cc1a","keyframes":[{"offset":0,"transform":"translate3d(0, -407.18956%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.29,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.45,"transform":"translate3d(0, -114.501704272%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.61,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.71,"transform":"translate3d(0, -38.927321936%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.8,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.85,"transform":"translate3d(0, -14.618105203999999%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":0.92,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"},{"offset":0.96,"transform":"translate3d(0, -6.352157135999999%, 0)","easing":"cubic-bezier(.5, 0, 1, 1)"},{"offset":1,"transform":"translate3d(0, 0%, 0)","easing":"cubic-bezier(0, 0, .5, 1)"}],"delay":0,"duration":600,"fill":"both"}] [{"selector":"#anim-39764cac-2c52-4288-8f89-45bf6e32ba73 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-14.840746262520032%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"fill":"forwards"}]

non-metallic minerals found in rocks - sedimentary rocks

[{"selector":"#anim-74e2ac07-9553-479f-9119-2c0187364e75 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-7990753c-b419-4555-9260-bffda13c9b8e","keyframes":{"transform":["translate3d(100.25445%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-a0e99836-6208-4695-84d2-22c5154c20cf","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

Which is the best type of magnetic iron ore

[{"selector":"#anim-dce398e8-c925-4251-b93b-0f70eb48da10","keyframes":{"transform":["scale(1)","scale(1.5)","scale(0.95)","scale(1)"],"offset":[0,0.33,0.66,1]},"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":1}] [{"selector":"#anim-0ebe8d9e-3031-44b1-8ee8-c69edeff5964 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-30.766945856281065%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}]

best quality magnetic iron ore -magnetite (Fe2O4)

[{"selector":"#anim-2eed3010-774f-405b-bb84-9d6fae14eb87 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-77ce5dc8-0f7d-4a61-b158-f0e609a3f3d6","keyframes":{"transform":["rotate(-540deg) scale(0.1)","none"],"opacity":[0,1]},"delay":0,"duration":1000,"fill":"both","iterations":1}]

Name the three leading iron ore producing countries in the world.

[{"selector":"#anim-ac3ac643-5ef1-4cc0-9eba-6fe363f21b3b","keyframes":{"transform":["translate3d(100.24272%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-755da18d-0f4d-4025-809b-b915c2dd41d6","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-9e0db906-5b60-4028-a1b3-3fd466eaa199 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.249999886225726%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"fill":"forwards"}]

The names of the three leading producers of iron ore in the world - China, Russia and Australia

[{"selector":"#anim-c275fc18-2567-499e-ba5a-afd298b41034 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.249999886225726%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"fill":"forwards"}] [{"selector":"#anim-5cbe4b1d-091c-401d-82b2-aa386adf95d9","keyframes":{"transform":["translate3d(-98.32536%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-52db9307-a7e7-4ee1-8324-7ba139e8ef58","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]