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See obsidian mind map examples, then make one from your own notes

Study volcanic glass with sample mind maps that show how formation, properties, and uses connect. Upload a PDF or notes and get an editable map you can explore branch by branch.

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What a good obsidian mind map looks like

obsidian mind map examples share one structure: a central topic with branches for formation, properties, varieties, and uses. Seeing that layout on a real subject makes it easier to copy the pattern for your own course notes.

Put the forming process on one branch and the resulting properties on another, so cause and effect stay visible.
Group varieties such as snowflake, rainbow, and mahogany obsidian under a single branch with their distinguishing features.
Keep archaeology uses separate from geology facts so you can quiz each area on its own.
Redraw the map from memory after a study session, then check the gaps against your notes.

Example obsidian mind map branches for geology

FormationSilica-rich lava cools rapidly · No crystals grow · Often found near rhyolite flows

Key propertiesConchoidal fracture · Mohs hardness about 5 to 5.5 · Very sharp edges when broken

Common varietiesSnowflake obsidian with cristobalite · Rainbow obsidian with banding · Mahogany obsidian with iron inclusions

Uses in historyStone tools and blades · Knapped cutting edges · Traded across long distances

Hydration datingWater slowly enters the surface · A hydration rind grows over time · Archaeologists use its thickness to estimate age

Generate the full set

Branches you can rearrange

Move topics, merge duplicates, and add sub-branches until the map matches how your course organizes the material.

Built from your own material

Start from a PDF, DOCX, PPTX, plain notes, or a photo of a textbook page read with text recognition.

Explore at your own pace

Expand and collapse branches to focus on one idea at a time, then turn key branches into flashcards or quiz questions.

How it works

Upload your notes

Add a lecture slide deck, a textbook chapter PDF, or typed notes on obsidian.

Review the generated map

Check the central topic and main branches, then edit any label or link that needs correcting.

Explore and study

Open each branch to review its sub-points, and reuse the structure for other geology topics.

Obsidian is volcanic glass, so the branches follow how it forms. Silica-rich lava cools too fast for crystals to grow, leaving a glassy solid that fractures with sharp, curved edges. A map that links these ideas lets you trace cause and effect instead of memorizing isolated terms.

Once you have a sample map, the faster route is to build one from your own lecture slides or textbook chapter. Upload the file and get an editable map you can reorganize, expand, and explore branch by branch.

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Mind mapping examples with answers

Build a mind map with answers from your own notes, then explore it in the browser.

Frequently asked questions

How do I tell obsidian apart from other volcanic glass?

Obsidian is usually black or dark brown, very glassy, and breaks with smooth curved surfaces. Compare samples against notes on color, luster, and inclusions, and check your course materials for the specific features your exam covers.

What should a beginner include in an obsidian mind map?

Start with the central topic, then add branches for formation, key properties, common varieties, and uses. Keep each branch to a few short sub-points so you can recall them without rereading the whole page.

How many generations are included in the free plan?

The free plan includes 3 generations per month and lets you study in the browser. Unlimited generations and exports such as PDF and CSV are available on the Plus plan at $39 per year or $7.99 per month.

Can I export my mind map if I use the free plan?

Exports are paid features, so they are not included on the free plan. Plus adds PDF, DOCX, Anki, and CSV export, and Pro adds QTI 2.1 and Moodle XML export for course platforms.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.