About.

The place to find everything about geology and beyond

I’m Pascal — a Geology Communicator and the creator of Geoscopy.

This is a geology and Earth‑science education project built to make complex ideas simple and useful. Here you’ll find geology explained through videos, easy to understand articles, and a growing rock & mineral identification guide that help curious minds understand the planet we live on.

Mission: Geology, made clear and practical

Geology can feel intimidating — full of terms, models, and processes hidden beneath the surface. Geoscopy brings those ideas to light with evidence‑based explanations you can use to understand the world: why volcanoes erupt, how earthquakes release stress, how rivers and glaciers shape landscapes, and what minerals reveal about the past. As a geology communicator, I am translating complex Earth-science research into clear, visual explanations that anyone can actually use in the real world — in class, on field trips, or just when you’re wondering what that weird rock is.

What you’ll find on Geoscopy
  • Visual Videos: Breakdowns of core geoscience topics for learners at any level.
  • Rock & Mineral Guide: Identification resources including mineralogy, petrology, crystal systems, luster, and hardness.
  • The "Decoder": An A–Z geology glossary for quick definitions without the jargon.
  • Deep Dives: Clear, visual articles on plate tectonics, geomorphology, stratigraphy, sedimentology, igneous & metamorphic rocks, geophysics, hydrogeology, coastal erosion, karst & caves, and more.
  • Real World Context: Practical context for natural hazards — landslides, sinkholes, tsunamis, floods — so news and maps make sense.
How content is produced

I start with questions, follow the evidence, and cut to the through‑line. Articles are updated as knowledge evolves, with transparent notes on what we know, what’s likely, and what’s still uncertain. When a topic is muddled by jargon, I peel it apart until the moving pieces are obvious.

Who this is for

Students, teachers, rockhounds, hikers, and lifelong learners — anyone who wants reliable Earth‑science education without academic gatekeeping. If you’re prepping a lesson, planning a field trip, or finally naming the rocks in your backyard, you’re in the right place.

Start here

  • Rock & Mineral Guide — learn identification the practical way (color, streak, cleavage, habit).
  • Geology Glossary (A–Z) — quick definitions that stick.
  • Latest Explainers — timely posts on volcanoes, earthquakes, fossils, caves, rivers, and more.
  • Videos — visual breakdowns of core concepts and field examples.
Join the conversation

Geoscopy is a living project. Send a question or topic request, share a puzzling rock, or suggest a clarification. The best geology content starts with curiosity — yours and mine.

Welcome to Geoscopy — geology made clear.

Jagged icy mountain glacier landscapeSteep rocky mountain peak under clear skySnowy mountain peak with glacier at sunset
Polished sample of a gneiss rock

Gneiss

Gneiss is a durable, banded metamorphic rock used in construction and decoration.

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Monazite mineral crystal cluster

Monazite

Monazite, a group of rare earth minerals, is a key source of rare earth elements.

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Green fluorite crystal on yellowish mineral matrix

Fluorite

Fluorite, a colorful calcium fluoride, is used as flux in steelmaking, glass, and as gemstones.

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Green pyroxene crystal mineral specimen

Pyroxene

Pyroxene, a silicate mineral group found in igneous and metamorphic rocks.

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Brown volcanic rock texture close-up

Rhyolite

Rhyolite, a silica-rich volcanic rock, is used in construction and research.

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Orange scheelite crystal on gray matrix rock

Scheelite

Scheelite, a calcium tungstate, is the main source of tungsten for tools and alloys.

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White kernite crystal

Kernite

Kernite is a boron-rich mineral used in glassmaking, detergents, and ceramics.

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Large translucent gypsum mineral specimen

Gypsum

Gypsum, a soft calcium sulfate mineral, is primarily used as plaster or in cement production.

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Dark blue scorodite crystal cluster mineral specimen

Scorodite

Scorodite, a hydrated iron arsenate, is valued for arsenic containment and as a collector’s mineral.

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Vanadinite crystal cluster on white background

Vanadinite

Vanadinite is a bright red mineral, primarily sourced from lead deposits.

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Dark gray shale rock sample

Shale

Shale, a fine-grained sedimentary rock, is used for natural gas, cement, and research.

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Rough beige sandstone rock on white background

Sandstone

Sandstone, composed of quartz and feldspar, is used in construction, paving, landscaping, and glassmaking.

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Diorite rock close up

Diorite

Diorite is a tough igneous rock used in construction, art, and in research.

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Bright yellow-green adamite specimen close-up

Adamite

Adamite is a rare, colorful orthorhombic mineral prized by collectors for its vibrant crystals.

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Zircon crystal on beige mineral rock

Zircon

Zircon is a durable mineral used in jewelry, geological dating, and ceramics.

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Cluster of shiny brown mica crystals

Mica

Mica is a group of silicate minerals with varying compositions mainly in insulation and electronics.

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Limestone rock with visible fossil imprint

Limestone

Limestone, mainly calcium carbonate, is used in construction, cement, and water treatment.

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Large basalt on white background

Basalt

Basalt is a dark, fine-grained igneous rock used in construction, monuments, and geological studies.

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Shiny black magnetite crystal mineral specimen

Magnetite

Magnetite, an iron oxide with magnetic properties, is used in steel production and catalysts.

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Descloizite mineral crystal cluster

Descloizite

Descloizite is a lead-zinc vanadate mineral, mainly found in Namibia and Mexico.

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Colorful watermelon tourmaline crystal slice

Tourmaline

Tourmaline is a colorful boron silicate mineral used as a gemstone and in electronics.

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Brown crystals of feldspar mineral specimen

Feldspar

Feldspar is an aluminum silicate used in ceramics, glass, and construction.

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Clear barite crystal mineral specimen

Barite

Barite is a barium sulfate mineral used in drilling, shielding, and paints.

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White dolomite crystal mineral cluster

Dolomite

Dolomite is a calcium magnesium carbonate used in construction and agriculture.

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Amphibole sample on white background

Amphibole

Amphibole is a diverse mineral group used for geological indicators and as insulation.

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Clear quartz crystal cluster on black background

Quartz

Quartz, a silicon dioxide mineral, is used in jewelry and electronics.

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Piece of red and brown bauxite ore

Bauxite

Bauxite is the main aluminum ore, primarily found in Australia.

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Raw red garnet gemstone close-up

Garnet

Garnet is a group of silicate minerals used as gemstones and abrasives.

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Gray quartzite rock on white background

Quartzite

Quartzite, a durable metamorphic rock made of quartz, is used in construction and countertops.

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Close-up of a granite rock sample

Granite

Granite is a durable igneous rock used in construction, monuments, and countertops.

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Bright green olivine crystal mineral specimen

Olivine

Olivine, a magnesium iron silicate, is used in gemstones (peridot) and refractory materials.

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Talc mineral

Talc

Talc, the softest mineral, is used in baby powder, cosmetics, ceramics, and plastics.

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Sample of apatite mineral crystal

Apatite

Apatite is a calcium phosphate mineral found in various colors, primarily used in fertilizers.

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Marble close-up

Marble

Marble, a calcium carbonate metamorphic rock, is used in sculpture, architecture, and countertops.

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Borax mineral specimen

Borax

Borax is a sodium borate used in cleaning and glassmaking.

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Shist rock example

Schist

Schist, a layered metamorphic rock rich in mica and quartz, is often used in construction.

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Calcite crystals on metallic mineral surface

Calcite

Calcite is a trigonal calcium carbonate mineral used mainly in construction for making cement.

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Shiny metallic hematite crystal cluster

Hematite

Hematite is an iron oxide mineral used for iron ore, pigments, and radiation shielding.

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Shiny metallic pyrite mineral cluster

Galena

Galena is the main ore of lead and silver, used in batteries and shielding.

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Muscovite mineral

Muscovite

Muscovite, a mica mineral, is used in insulation, fireproofing, and cosmetics.

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White halite rock salt crystal cluster

Halite

Halite, or rock salt, is a sodium chloride mineral used for seasoning, de-icing, and industry.

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Dark black biotite mica mineral specimen

Biotite

Biotite is a dark mica mineral used in insulation and geological studies.

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Beryl crystals with brown mineral base

Beryl

Beryl is a gemstone mineral, including emerald and aquamarine, and a source of beryllium.

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Wulfenite crystal specimen

Wulfenite

Wulfenite is a bright orange or yellow mineral, prized by collectors.

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Shiny black coal

Coal

Coal, mainly carbon, is used for energy and steel production.

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Shiny metallic pyrite mineral cluster

Pyrite

Pyrite, or “Fool’s Gold,” is used for sulfur and iron production.

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Metamorphic rock with dark red garnet crystals

Chlorite

Chlorite, a green phyllosilicate mineral, is used as a geological indicator and industrial filler.

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