The Hobby Library

Beginner’s guide · Observe & photograph

Collect the evidence.
Then give the specimen a name.

Begin with a few legal, loose finds and record where each came from. Use a hand lens, a field guide and simple property tests to narrow an identification before buying a hammer or filling shelves with unlabelled stones.

Start with the quick answer See the full guide
Written by The Hobby Library Checked 31 July 2026
Small labelled rock and mineral specimens beside a folding hand lens, streak tile and field notebook
Best first collectionThree labelled local or purchased specimens
Selected study setupAbout £35
First session60–90 minutes at home
Most valuable habitRecord location before cleaning
01

Quick answer

Start with provenance, not a hammer

Choose three ordinary specimens already owned, legally collected from loose material or bought with a reliable label. Give each a number, record its exact origin and observe grain, lustre, cleavage or fracture, hardness and streak where appropriate. Compare all the properties with a regional guide instead of identifying by colour alone.

The quick answer
  1. 01

    A 10× hand lens reveals crystals, grains and surface texture without turning the hobby into laboratory microscopy.

  2. 02

    Rock names describe mixtures and textures; mineral identification uses properties such as hardness, streak, cleavage and crystal form.

  3. 03

    Testing can scratch, powder or contaminate a specimen. Use an inconspicuous surface and do not test valuable, fragile or unknown hazardous material.

  4. 04

    A useful label keeps specimen number, place, date, finder and confidence. “Pretty grey rock” without a location is much harder to study later.

02

What to expect

Identification is a case built from several clues

Colour varies with weathering, impurities and lighting. A confident identification usually combines context with texture and repeatable physical properties.

01

Context

Local geology and the precise layer, beach or spoil heap can eliminate many otherwise plausible names.

02

Texture

Interlocking crystals, rounded grains, layers, bubbles and glassy fracture often tell more than colour.

03

Hardness

A controlled scratch test asks which known material scratches which; pressing harder is not a better test.

04

Streak

The powder colour on unglazed porcelain can differ from the specimen surface, but very hard minerals may not leave a useful streak.

05

Cleaning

Water, acid and brushes can remove evidence or damage soluble and reactive minerals. Identify the material before aggressive cleaning.

06

Storage

Some minerals fade, rust, shed fibres or react with moisture. A labelled box and stable environment are part of collecting.

03

Identification

Keep observation, testing and interpretation separate

Record the find before altering it

Photograph the specimen in place where this is safe and permitted. Note a precise location, date, surrounding material and whether it was loose, purchased or given. Assign a number that links the object to the notes. A locality is scientific information, not optional decoration.

Observe with the naked eye and lens

Describe colour on fresh and weathered faces, grain size, layers, crystal form, sparkle, transparency, weight and magnetism. Use the lens in good light and hold it close to the eye, moving the specimen into focus. Write what is visible before consulting a name.

Use the least destructive test first

A guide can suggest safe checks. Test hardness on a small inconspicuous fresh area with a known reference and observe whether a true scratch remains after wiping. Use a clean streak plate only when appropriate. Avoid acid, flame and taste tests at home.

Give identifications a confidence level

Write “likely quartz-rich sandstone” or “calcite suspected” with the supporting clues and remaining conflict. Compare with museum material or a knowledgeable group. A corrected label is progress; an unsupported certainty is not.

04

Useful products

A field lens, a visual guide and a property-testing reference set

The Carson folding loupe is the first purchase because it supports every specimen. The compact DK handbook helps compare textures and properties. The Mohs and streak set is for deliberate home testing after observations are written, not something to carry out and use on every find.

01Amazon UK
Start here: inspect every specimenCheck current price

Carson TV-15 5×/10×/15× Folding Loupe

The folding lens adds real surface information without altering the object or requiring a bench setup.

Worth knowingUse strong side light and steady the sample; clean the lens only with an optical-safe method.
View product Link checked 31 Jul 2026
02Amazon UK
Useful: compare several propertiesCheck current price

DK Rocks and Minerals: DK Handbook

The handbook keeps texture, formation and mineral clues together while the physical specimen is in hand.

Worth knowingUse it to form candidates, not to force a match from colour alone.
View product Link checked 31 Jul 2026
03Amazon UK
Later: controlled property testsCheck current price

Landical Mohs Hardness and Streak Test Set

Known reference minerals and streak plates make a scratch comparison more informative than improvised pressure.

Worth knowingTest an inconspicuous appropriate area and record the result; do not damage rare, fragile or hazardous material.
View product Link checked 31 Jul 2026
05

First collection

Build a three-specimen reference drawer

Use common, stable specimens with known or well-recorded origins. A small purchased study set is acceptable when local collecting rules or access are uncertain.

  1. 01

    Number the specimens

    Give each object a durable number and create a matching page in the notebook.

  2. 02

    Write the provenance

    Record exact source, date, collector or seller label and whether the material was loose or in situ.

  3. 03

    Describe before naming

    List grain, texture, lustre, transparency, fracture and visible crystals in ordinary language.

  4. 04

    Inspect at 10×

    Look for crystal boundaries, individual grains, pores, fibres or weathering products.

  5. 05

    Choose one safe property test

    Use a guide to select hardness, streak or magnetism and perform it only on an appropriate inconspicuous area.

  6. 06

    Compare regional context

    Use a visual handbook and local geology source to narrow the candidates.

  7. 07

    Label with confidence

    Write the likely identification, evidence and any alternative rather than forcing certainty.

  8. 08

    Store separately

    Keep labels attached to the record and isolate anything friable, reactive or not yet understood.

06

What can wait

What can wait until identification becomes the hobby

Collecting tools are not permission to remove material, and a bigger pile is not a better collection.

  • 01

    A geological hammer

    Surface collecting and purchased specimens teach observation first. Hammering needs landowner permission, safe geology, eye protection and site-specific rules.

  • 02

    A large display cabinet

    Use small stable boxes with complete labels until the collection has a real organising principle.

  • 03

    Chemical cleaning

    Acids and rust removers can destroy carbonate minerals, release fumes or create hazardous waste. Identify first and use specialist guidance.

  • 04

    UV lamps and specialist meters

    They answer particular fluorescence or gemmology questions. Basic texture and property work should reveal whether that route interests you.

  • 05

    Buying mystery specimens in bulk

    Unreliable labels and no locality teach less than three well-documented examples.

07

Upgrade path

Improve the quality of the record before the size of the collection

Later equipment matters when it produces a property or context that the current record cannot capture.

01

Three specimens

About £8–£35

Hand lens, notebook and guide

Learn observation, provenance and cautious identification.
02

Property-testing bench

About £20–£60

Known hardness points, streak plate, magnet and scale

Compare physical properties systematically on suitable samples.
03

Local field collection

About £40–£150

Maps, footwear, eye protection, bags and permits where needed

Connect specimens to geology while taking responsibility for site rules and safety.
04

Specialist analysis

£150–£1,000+

Stereo microscope, density tools or society/lab access

Study microcrystals and harder identifications beyond visual field methods.
08

Field safety

Permission and ground conditions come first

A public-looking beach, quarry, road cutting or mine spoil is not automatically safe or legal to collect from.

  • Check land ownership, access law, protected-site rules and collecting limits for the exact location before taking material.
  • Do not enter working or disused quarries, mines, cuttings or unstable faces without explicit permission and competent arrangements.
  • Wear strong footwear, check weather and tides, tell someone the route and avoid working alone in remote or unstable places.
  • Use eye protection whenever striking material and keep other people outside the fragment path.
  • Leave scientifically important, rare or large in-place material undamaged and report it to the relevant landowner, museum or geological body.
09

Outside help

When local knowledge is worth more than another tool

A geological society walk can explain which loose material is legal, what the local rocks look like and which apparent collecting sites are unsafe.

Museum and survey identification resourcesFree

Compare the first specimens with regional examples before asking for a final name.

Local geology group field tripOften £5–£35 plus membership or travel

Choose an organised visit with permission, safety information and a clear collecting policy.

Free identification resources and representative UK society arrangements checked 31 July 2026; trip fees and collecting permission vary.

10

Sources

Where the guidance came from

Museum identification guidance anchors the observation method, while geological field codes and collectors’ experience set the access and safety boundaries.

  1. 01 Natural History Museum · Beginner’s guide to identifying UK rock types

    UK rock textures, formation groups and beginner identification cues.

    Open source
  2. 02 Geological Society · Fieldwork resources and code

    Permission, quarry, cliff, footwear and fieldwork safety principles.

    Open source
  3. 03 r/rockhounds · Advice for starting rock hunting

    Recurring practitioner advice on books, hardness, streak, eye protection and simple early collecting.

    Open source
  4. 04 Amazon UK · Carson TV-15 folding loupe

    Exact product page, model or ISBN, observed price and availability checked for this guide.

    Open source
  5. 05 Amazon UK · DK Handbook Rocks and Minerals

    Exact product page, model or ISBN, observed price and availability checked for this guide.

    Open source
  6. 06 Amazon UK · Landical Mohs hardness and streak kit

    Exact product page, model or ISBN, observed price and availability checked for this guide.

    Open source

Guide information and links checked 31 July 2026.

Privacy controls

Necessary storage is always active. Optional categories can be changed at any time.