Molecular models, crystal structure models and mineral structures


We design, build and sell beautiful premium quality ball and stick molecular models and crystal structure models for teaching, museum displays, presentations, awards, legal cases - or for anyone who just wants a stunning scientific model.


Molecular Models are a fascinating and engaging part of education in chemistry, and a useful tool for demonstrating chemical concepts and explaining material properties to colleagues and customers.  They provide a tangible, tactile and interactive way for educators to demonstrate the relation between molecular structure and chemical function in a form that cannot be replicated with, for example, computer imaging. Similarly, they perfectly illustrate the relation between mineral structures and physical or chemical properties. Alternatively, they can simply be works of art - three dimensional sculptures that enrich a work or visitor area. Whatever you need them for, our models simply look stunning, and enhance any office or laboratory.


Crystal structure model of diopside mineral
Molecular and crystal structure Models

Standard 1cm=1Å scale

A girl sitting with a giant molecular model on a grass lawn
Large and Giant models

Examples of the models we build can be seen throughout our website. Please use the links above to find out more about our products, search our model catalogue, or to inquire about having us design and build a model of your structure.

We hope you enjoy looking round our website and seeing the quality and variety of stunning scientific models that we make for display and education. To buy models from us, or to discuss what you would like made, please either complete the order form or the contact form, or email us at sales@miramodus.com



molecular models of primitive unit cells with acrylic lattice planes



Pre-constructed Models

Pre-constructed models make up the vast majority of our sales, and they represent some of the finest crystal structure models that can be purchased.  Furthermore, we have the widest range of scales of crystal structure models in the world, ranging from a scale of 1cm=1Å (“Beevers’ Models”™) through to our giant molecular models at a scale of 20cm=1Å or greater, and in a huge range of materials.  With the exception of a small number of the commonest chemical structures that we keep in stock, all are our models are made to order, and nothing is 'standard' about them - if a bond angle in a "tetrahedrally" coordinated atom in the structure is 112°, the balls are drilled with holes arranged at that angle - we don't insist that you have to compromise by using regular tetrahedral coordination. And that can make all the difference between representing features that exist in a crystal and missing them out entirely. What's more, because our models are all made to scale, you also get to see the relative sizes of crystal structures - with regular model kits, for example, a diamond unit cell is much larger than that of sodium chloride, whereas in reality (and in our models) the opposite is true.

Beevers Models (named after their creator, Arnold Beevers) are made with acrylic balls and steel rods, but we also work with a wide range of materials to suit your purpose and your budget. We have made and sold molecular and crystal structure models in acrylic, phenolic resin, wood, brass, copper, aluminium, silver and a host of other materials.

Gallium nitride model made with brass and aluminium balls

A model of Gallium Nitride made with brass and aluminium balls, linked by green anodised aluminium rods on a granite base.

The accuracy and compactness of our Beevers Models™ system allows our model range to extend over the entire spectrum of 3-dimensional structures in Chemistry, Biology, Geology, Physics and Mathematics.  Our huge list of Beevers' ball and stick models for sale from our catalogue includes crystal structure models, biological, physical, mathematical and crystallographic teaching models. We also make an extensive range of models of organic and inorganic molecules - or any compound you want to order.  All the usual favourites are available - you can buy a molecular model of DNA or of RNA, inorganic molecules such as fullerenes (buckyballs), from C28 through C60 and C70 to C720 and beyond, inorganic structures such as NaCl or YBCO, and innumerbale materials you have probably never encountered, such as Thorium Zinc Carbide. Even if the material that you want is not in our catalogue - or you want a molecular model of an entirely new compound - we will still be able to make your structure, whatever its size; all we need are the crystallographic details or node coordinates. 


Scale matters!

All our models are made accurately and to scale, making it possible to directly measure angles and lengths, to visualise the relative scale of different structures and to show how, for example, a solvent molecule can enter into a porous structure. With other model systems, this simply isn't a reliable option, as the user has no assurance that the solvent and the matrix have been made on the same scale. With our models, you can immediately see, for example, why diamond is more dense than graphite and why zeolites absorb some compounds but not others.



Model kits for any of our models can be supplied on request (as long as you are aware and accept that they are not as easy to put together as most people expect). Because our models are largely designed for display or teaching specific crystallographic or structural concepts, they are not the sort that you can take apart and rebuild, and so we don't make models like other manufacturers do. By their nature, therefore, our Beevers models don’t readily lend themselves to being sold as kits. That being said, however, we routinely make kits for our and large and giant models. These are fantastic for teaching, for museum activities, and for fun activities.